1-Bit Symphony

I casi della vita sono strani.

Tristan Perich sta facendo fortuna con il suo concetto di musica a 1 bit che non è altro che la ripresa, pari pari, della sintesi sonora utilizzata nei primissimi personal computer (il Commodore 64 era già più avanti, ma le sonorità sono simili).

In pratica, si utilizza un piccolo circuito con un flip-flop, cioè un dispositivo che alterna 1 e 0 a intervalli di tempo regolari, generando un’onda quadra. Se, per esempio, il flip-flop alterna uno e zero 440 volte al secondo, si genera un’onda quadra a 440 Hertz, cioè un LA, che però conterrà solo gli armonici dispari (così è l’onda quadra) e un po’ di quelli pari ma solo per distorsione armonica, con effetti temibili già sulle consonanze più lontane di 8va e 5a (ovvero praticamente tutte).

Questo sistema era usato nei vecchi pc per pilotare il piccolo e nefando altoparlante di sistema perché richiede risorse minimali. Era semplice, quindi, costruire circuitini di costo bassissimo in grado di produrre molte onde quadre a frequenze diverse contemporaneamente, come nel famigerato SID del Commodore 64 (il cui nome tecnico era 8580 SID chip, dove la sigla stava pomposamente per Sound Interface Device).

Peraltro, questo tipo di sintesi è già utilizzato da anni dai vari gruppetti che fanno quella che viene chiamata 8-bit music, proprio perché si rifà alle vecchie macchine a 8 bit.

Ora Perich ha ripreso questo disturbante suono realizzando varie installazioni e composizioni, alcune delle quali sono anche strutturalmente interessanti ma, per le mie orecchie, sono indelebilmente marchiate dal suono del C64 che mi fa venire voglia di piazzare un bel filtro passa-basso a valle di tutto l’audio.

La cosa buffa è che, quando eravamo piccoli, di cose del genere ne abbiamo fatte a tonnellate, ridendoci sopra. Però, ripeto, i casi della vita sono strani e oggi la gente trova un gran gusto nel farsi trapanare le orecchie dalle onde quadre.

Non so che dire. Esiste, nella vita, il fascino delle cose antiche riprese e riviste, che è anche quello che spinge della gente a suonare musica antica con strumenti d’epoca e corde di budello che però, proprio perché d’epoca, non stanno accordati per più di 5 minuti, costringendo l’interprete a suonare stonato per metà del pezzo (NB: non ce l’ho con la musica antica ma solo con quelli che fanno come sopra).

Ecco alcuni esempi fra i migliori (ne trovate altri sul suo sito), nonché il video della temibile 1-Bit Symphony.

  • Between the Silences for nine strings, nine-part 1-bit music (2008)
  • All Possible Paths for clarinet, acoustic guitar, cello, double bass, marimba, piano, 5-channel 1-bit electronics (2008), commissioned by Bang on a Can’s People’s Commissioning Fund

I am standing in a line

A funny realization of Alvin Lucier’s “I am Sitting in a Room”, made by Christopher Penrose using the following text:

“I am standing in a long line at a crowded urban supermarket holding a bright yellow fly-swatter. I feel judged and mistrusted by many in the store as if I were brandishing a high-caliber firearm. There is even a dog here in the store barking at me. He knows that I am a premeditated killer of flies.”

16 iterations + original “spoken” text

Data Rape

Track 6 from E.A.R.’s 1998 “Data Rape”.

Circuit bending involves taking cheaply available electronic soundmaking toys (in this case mostly Texas Instruments’ “Speak & Spell” human voice synthesizing toys from the late ’70’s, but also applicable to all sorts of keyboards, effects boxes and samplers) and adding extra wires, knobs and switches to make new connections between parts of the internal circuitry and chips. This sends data and electronic signals to previously unrelated circuit board points – inducing through a strange sort of “Data Rape”- astounding new sounds, chance evolving compositions and textures, phoneme freezing and looping, random glottal pulse and phoneme generation, complex lattice filtering and unique pitch shifting techniques.

Trans

Gerd Kühr: Trans, from Revue instrumentale et electronique (2004/5 according to the composer’s site, not 2007 as stated in the video)

Austrian composer Gerd Kühr is a professor of composition at the Universität für Musik und darstellende Kunst in Graz; he also works as a conductor and once studied with Sergiu Celibidache. Kühr has also taken composition with Hans Werner Henze.

Kühr’s piece Revue instrumentale et electronique is divided into six sections. It is scored for nine spatially divided instrumental groups and electronics.

The transitions between the electronics and live sections is seamless; you are listening and you gradually realize “we are hearing electronic music now” as opposed to the live instruments. Kühr is very effective at devising novel instrumental timbres, such as the palpitating percussion and fleeting winds in the opening “Intro” and in the alien atmosphere of sustained notes in “Trans.”

…à la fumée

And this is the second pièce from the cycle Du Cristal…à la fumée, by Kaija Saariaho.

The last sound of Du Cristal – a cello trill played sul ponticello – becomes retrospectively the first sound of its successor, …à la fumée, which features solo parts for cello and amplified alto flute in addition to large orchestra. Saariaho has commented that

to my way of thinking, Du Cristal … à la fumée is a single work, two facets of the same image, but both fully drawn in, living and independent.

The difference between the two works is already manifest in the title: crystal is a classic example of repeated order, symmetrical, tense, stable mass. Smoke, on the other hand, changes its form constantly, an unpredictable, developing state. Crystal and smoke, like order and entropy, chaos. The title is inspired by a book by Henri Atlan, Entre le cristal et la fumée (Between the Crystal and the Smoke).

The single most important element in the music of Kaija Saariaho is tone colour, attached inseparably to harmony. In this sense she can be thought of as continuing the French orchestral tradition. Her music does not, however, only feast on beautiful sounds. The starting point of composition for her comes from a carefully studied theoretical basis. The origin of her music is a single sound which she penetrates, trying to uncover its structure and the laws that govern it. With these laws, just by changing the scale, the composer builds colours, harmonics, forms, rhythms – music. This starting-point ensures that all the works of Kaija Saariaho have a strong sense of unity. Elements that seem different fit together, because they are basically born from the same source.

Rather than associate Kaija Saariaho’s music with mathematical formulae or computer programs, it is more fruitful to compare it with nature – its biological and physical models. The composer herself has spoken of arctic lights, water-lilies, crystals, spirals: forms and materials which in themselves are perfect and beautiful and create aesthetic experiences, but which offer endless grounds for even scientific study. Observation of how the inner relations of organisms are built, how they change and multiply; how forms that seem simple and natural are of endless variety when examined closely: chaos and order can be closer to each other than we first suspect.

The tensions in Kaija Saariaho’s music, its dramaturgy, are built on pairs of contrasts. One important pair of contrasts is formed by sound and noise. This is manifested, for instance, in the sonority of the cello: when the bow is moved towards the bridge, adding bow pressure, the sound breaks and turns into noise. On the flute, when you blow into the tube you can create noise (which has its own tone colour) and which changes into a sound when the air hits the mouthpiece at the right angle. In rhythm, a simple pair of contrasts is created between repetitive and irregular patterns. Gradual movement between two opposites, interpolations, create and release tensions in the same way as do chordal functions in traditional tonal music.

It is no surprise that the soloists in …a la fumée are flute and cello. These would appear to be Saariaho’s favourite instruments given that many of her solo pieces have been written for them (for the flute, Canvas, Laconisme de l’aile, NoaNoa; for the cello, Petals and Près). …a la fumée however, is not a normal double concerto, in which the solo instruments are contrasted with the orchestra. In this work, flute and cello are like microscopes with which the composer penetrates deep into her material, shedding light from different angles and changing the scale.

György Ligeti, with whose earlier music Kaija Saariaho’s works have certain points in common, has spoken about a phenomenon familiar to most of us. When we go up in an aeroplane, we do not feel ourselves in motion. At the same time, details of the scenery disappear and merge into a whole. A meadow, swarming with inner energy, changes first into fields of colour, then into a bare point in the distance. The amplification of the alto flute and the cello serves this purpose: a whisper from the flute can grow to the scale of a big orchestra, a harmonic from the cello can be outlined above the whole landscape of sound. Is not one of the meanings of music, and all art, simply this? To create illusions, presentiments of a world that could be true.

Du Cristal

Kaija Saariaho – Du Cristal, 1989 – for large orchestra.

Du Cristal was commissioned jointly by the Los Angeles Philharmonic Orchestra and the Helsinki Festival, and it was first performed by the Finnish Radio Symphony Orchestra conducted by Esa-Pekka Salonen in September 1990.

It is scored for a standard large symphony orchestra with the addition of an important part for synthesizer, and featuring a highly prominent percussion section. None of Saariaho’s major works to date is without some kind of electronic element, and the presence of the synthesizer is significant in the light of Saariaho’s remark that she tends to the orchestra itself ‘as if it was a huge synthesizer’. The standard form of electronic synthesis is ‘additive’ – that is, each sound is created by piling innumerable pure tones upon each other.

Transferred to the medium of the orchestra, this means that it is as if each individual instrument were analogous to a pure tone in a synthesizer, merely a tiny part of a large, slowly evolving mass of sound. Thus there is no polyphony, nor any melody in the conventional sense, although the music is frequently lyrical in its gestures and the activity within the textures may momentarily suggest polyphony; the important thing to follow is the overall drift of the orchestral mass, and to relate the individual details to that.

It’s an approach which owes something to the dense, multi-layered orchestral works of György Ligeti, such as “Atmosphères and Lontano”, as well as to the so-called ‘spectral-music’ of French composers Tristan Murail and Gérard Grisey, all of whom Saariaho has acknowledged as influences on her music; but her won style is nevertheless thoroughly personal and has distinctly brooding, ‘Northern’ character quite distinct from any of the afore-mentioned.

The harmonic character of Du Cristal is especially focused and clearly defined as the work is dominated by the bell-chord with which it opens. During the first seven minutes, this chord is slowly and methodically dissected: all its internal components are highlighted as its orchestration is progressively shaded and softened, although the basic character of the chord remains essentially unchanged.

There follows an eruption of some violence which breaks up the harmonic continuity of the music; a dialogue ensues between onslaughts of unpitched percussion and further bell sounds from tuned percussion and synthesizer.

After this the texture thins somewhat and the rate of harmonic change increases; melodic tissues briefly emerge on the violins and the woodwind. The increased rate of change precipitates the principal climax of the work, again featuring untuned percussion prominently: chaotic, irregular rhythms gradually merge into a hammeringly regular series of ostinatos for the full orchestra – the simplest and clearest music in the piece – and out of these the sound spectrum is gradually narrowed until a single note (a unison A flat) is heard

As this fades into filigree passages for solo strings, the music drifts closer to the harmonic world of the opening, and the original chord is itself twice restated; far from subsiding, however, the music suddenly veers back to the hammering ostinato of the climax – as if the form of the whole piece thus far had been telescoped into some two minutes. Only now can the music progress to the coda, underpinned by a series of wave-like crescendos on bass drum and synthesizer as the textures dwindle to a single cello trill.

This trill will be the starting point for second work of the cycle called …à la fumée. Saariaho took her title from a book by the French writer Henri Atlan, “Entre le cristal et la fumée”, and for her it signifies the way the same acoustic material is developed in sharply different ways in the two pieces, the turbulent energy and almost expressionist outbursts of Du Cristal subsiding into the capricious, playful double concerto of…à la fumée.

Petri Alanko, alto flute; Anssi Karttunen, cello, Los Angeles Philharmonic Orchestra, dir. Esa-Pekka Salonen

Mortuos Plango Vivos Voco

Jonathan Harvey: “Vivos Voco” (1980) for concrete sounds processed by computer.

Born in Warwickshire in 1939, Jonathan Harvey was a chorister at St Michael’s College, Tenbury and later a major music scholar at St John’s College, Cambridge. He gained doctorates from the universities of Glasgow and Cambridge and also studied privately (on the advice of Benjamin Britten) with Erwin Stein and Hans Keller. He was a Harkness Fellow at Princeton (1969-70).

An invitation from Boulez to work at IRCAM in the early 1980s has resulted in eight realisations at the Institute, or for the Ensemble Intercontemporain, including the tape piece Mortuos Plango Vivos Voco, Ritual Melodies for computer-manipulated sounds, and Advaya for cello and live and pre-recorded sounds. Harvey has also composed for most other genres: orchestra (including Madonna of Winter and Spring, Tranquil Abiding and White as Jasmine), chamber (including three String Quartets, Soleil Noir/Chitra, and Death of Light, Light of Death, for instance) as well as works for solo instruments.

analyzed by Pierre Boulez

Marco Stroppa: the video

After the Marco’s master, I publish here the link to the IRCAM video about his works for solo instrument and chamber electronics.

Here you can find excerpts from …of silence, hist whist and I will not kiss you f.ing flag. You can also see Arshia Cont, the creator of the astonishing score and tempo following software Antescofo.

I already posted this link on Dec. 12 2009, but now I point out again because here the students can see some applications of the systems that Marco described in his lecture.

In any case, the video is very interesting.

Mixtur 2003

Karlheinz Stockhausen, “Mixtur 2003 (Forward Version)”
for 5 orchestra groups, 4 sine-wave generator players, 4 sound mixers, with 4 ring modulators and sound projectionist

From the Musica Viva Festival
Bavarian Radio Orchestra, Lucas Vis
Recorded January 27, 2008
Muffathalle, Munich

The essential aspect of MIXTUR is, on one hand, the transformation of the familiar orchestra sound into a new, enchanting world of sound. It is an unbelievable experience, for example, to see and hear string players bowing a sustained tone and to simultaneously perceive how this tone slowly moves away from itself in a glissando, the pulse accelerates, and a wonderful timbre spectrum emerges. Orchestra musicians are astonished when they hear the notes they play being modulated timbrally, melodically, rhythmically, and dynamically. All shades of the transitions from tone to noise, noise to chord, from timbre to rhythm and rhythm to pitch come into being from such ring modulations, as if by themselves.

Finest micro-intervals, extreme glissandi and register changes, percussive attacks resulting from normally smooth entrances, complex harmonies (also above single instrumental tones), and many other unheard-of sound events result from this modulation technique and from the variable structuring.

Secondly, the ring modulation adds new overtone- and sub-tone series to the instrumental spectra, which can be clearly heard, especially during sustained sounds in MIXTUR. Such mixtures do not occur in nature or with traditional instruments. Through these mirrored overtone harmonies, one is moved by alien, haunting sensations of beauty, which are completely new in art music.

Only such renewal in how music affects us imbues new techniques with meaning.

— Karlheinz Stockhausen

From ANABlog

Torment of the Metals

coverThe sound of Akashic Crow’s Nest begins with the use of an image synthesizer which turns very long photographic images into audio output, in the manner of a piano roll. The initial part of composing this music is thus designing the picture. For this latest project, the first audio output is converted to midi and run through a different softsynth, before being subjected to a battery of effects to get to the sounds you hear on this album.

Download from Webbed Hand Records

Excerpt: