Showing posts with label microtones. Show all posts
Showing posts with label microtones. Show all posts

Saturday, 20 June 2020

I Found a... Scale

Back in September 2018 I posted the "I Found a... Pipe" blogpost - an attempt to initiate a series of found object accounts; exploring the dynamics of curiosity, the chance encounters, the chains of association, the pratfalls and prat-uplifts that may accompany such discoveries.  One of the persistent themes of this blog is the idea that electronic-equivalents of soundmaking processes can be found for free in the physical world - an ideal driven by poverty and its resultant anti-capitalism, and accompanying scepticism towards commercial electronic hardware flavours-of-the-months.  Whereas the pipe of 2018 had limited soundmaking value, this new blogpost examines the musical scales obtainable from multi-holed hollow flints, found during pandemic walkabouts.
The current situation places bin-diving off-limits, so instead, I've been traipsing around fields.  The flint-rich geology of the locale boasts rocks with hollow cavities - channels left by decayed ancient sea sponges.  These hollow flints are difficult to spot, as their holes are usually clogged with mud.  After some cleaning with water and bell-wire, the cavities can be cleared, creating almost ocarina-like 'instruments'.  So far, a number of different flints have been found with interlinked channels, each offering unique microtonal musical scales.

These stones, each with their own in-built set of pitches formed 500 million years ago, are good grist for the arbitrary tuning mill.  Why is arbitrary tuning important?  I consider it a topic all-too-frequently dismissed.  For those who enjoy the divergent aspects of differently-tuned music, or wish to escape the ubiquity of the equal tempered musical scale, it may be surprising that microtonal/xenharmonic music offers very little refuge - it is here that just intonation and "pure" harmonic mathematical dogmatism supplants one tyranny with another.  I exaggerate here a bit, but it's fair to say that random/arbitrary musical scales are generally viewed as unsophisticated in microtonal music circles.

A few years ago I tried to establish a historical basis for 'intuitively selected tuning systems' in my Radionics Radio project (on Sub Rosa records), but drawing upon a fringe science - no matter how artistically groundbreaking those acoustic-radionic activities were in the late 1940s - didn't convince many (radionics involves 'psychically' selecting frequencies that correspond to thoughts).  Random tunings offer complete freedom, and reveal the idiosyncrasies of the instruments used, as well as the identities of soundmakers.  I would go as far to politicise it: arbitrary tuning is perhaps the ultimate musical 'decolonisation' whilst also being a practical and philosophical ideal for microtonal music's LGBTQ+ lineage that embraces such varied personalities as Kathleen Schlesinger, Elsie Hamilton, to Harry Partch and Wendy Carlos - a lineage rarely-discussed, but deeply rooted, I believe, in the opposition to the norms of western equal temperament (and the contra-norms of just intonation and equal divisions of the octave).

The hollow flint... containing a scale.
Hollow flints found in fields speak of the primacy of arbitrary tunings: random, fully individuated tunings literally set in stone.  My favourite is a handheld flint with five channels.  Unlike the specially-lipped ocarina, hollow flints cannot produce pure tones when blown into, unless a sharp 'labium tip' is expertly chiselled into it somehow (a feature of all fipple flutes).  This isn't necessarily a problem - for instance, sound artist Akio Suzuki has been playing upon unrefined natural stones for decades, eliciting exploratory pitched noise: half-tonal, half-percussive, and sensitively done.  Covering the holes on the flint while blowing does produce vague pitches, but too broad to measure precisely.

Kathleen Schlesinger, in her 1939 deep-study of ancient greek auloi (reeded wind instruments dug up from historical sites) and their possible scales remarked that "it is impossible to determine the pitch, scale, or modality of any pipe that lacks a mouthpiece which will play it".  These rocks are not instruments, and it is indeed tricky treating them as such: even if a fipple mouthpiece (from a wind recorder, for instance) is introduced to the rock (which I did), the pitch of the notes varies due to its player's breath pressure: the more open holes there are, the more breath pressure is required to produce a tone - and the natural reflex action is to supply more breath pressure, an action so unconscious that it almost feels as if the rock becomes an extension of the body.  Try it yourself.

It is possible to connect a small lapel microphone to a loudspeaker amplifier, and place the microphone inside the flint to hear feedback.  The feedback pitch is relative to the cavity, and alters according to the fingering of the cavities.  I did a brief experiment with this on camera, and posted it to Facebook to advertise the upcoming episode of Wavelength on Resonance FM where I describe these experiments.

On the internet, there's always either a miserable don't-know-who, or a know-it-all nonsenseclown poised to blurt.  If they're remotely connected to creative doings, it tends to spur on the mission to legitimise arbitrary scales.  On this occasion, one such character (I can't discern which) emerged from the woodwork to advertise their obliviousness to these experiments' contexts: "eh, this is like sticking a piezo transducer in anything. Ok; weird, somewhat regulated noise. 'Man farting in field' has been Lucier'd to death."

Alfred Graham's feedback flute, 1894.
Maybe this person is rightfully irate to some extent: the volume required to obtain the pitches of the flint cavity is horrendous on the ear.  To record it, one rainy afternoon I walked to the field where the flint originated, specifically to avoid remonstrations.  Alvin Lucier used compressors to limit the volume of his object-based feedback.  This feedback technique actually pre-dates Lucier's work by eight decades - the feedback flute was proposed by Alfred Graham, patented in 1894 - a failed history I've excavated and written about in 'Magnetic Music...' and 'Failed Histories of Electronic Music', and recreated as a working model.  Graham recognised the many variables affecting the flute's pitch, such as battery power, the shape and construct of the loudspeaker and microphone, and their relative positions.  Nevertheless, the feedback flint, if held stable enough, is a fairly accurate approximation of the pitch intervals obtainable.  By comparing the feedback-generated intervals with the intervals obtained with an attached fipple, and also with the vague windy tones created when blowing, mean averages can be obtained.

With the lowest note registering as 669Hz, the ratios are calculable as 1/1, 737/669, 775/669, 263/223, 269/223 and 828/669 (giving an ascending 167.590, 254.628, 285.622, 324.674, 369.149 in cents).

What can be done with these notes?  Well, the scale of this handheld flint encompasses less than four semitones (3.69, to be exact), which is a restrictive set of notes, but frequent exposure to the notes acclimatises the ear to soundmaking/melodic possibilities.  This is something noted by the composer Susan Alexjander who derived scales from DNA bases.  DNA bases' tunings might as well be arbitrary, such is the inharmonic chaos - they seemed "so strange and alien that one at first despairs of ever creating a beautiful work of art, or making any coherent 'sense' out of them", according to Alexjander.  By constant exposure to the new scales "played over and over on the synthesiser, some arrestingly beautiful combinations began to appear"...  so when dealing with such disorientating scales, perseverance is key!

More can be heard on Wavelength, broadcast on Resonance 104.4FM on 19th June 2020. "A programme of multiple agendas presented by William English. This week: a tape sync with Oscillatorial Binnage member Daniel Wilson who, prevented from bin-diving during the Covid-19 epidemic, instead turns to "ground-diving" to dig out unusual stones from the earth. The potential for producing 'rock music' is showcased after a lengthy preliminary chat with William on the current state of the second-hand book trade."

Monday, 8 August 2016

Radionics Radio - 'An Album of Musical Radionic Thought Frequencies' (Sub Rosa)

Radionics Radio's An Album of Musical Radionic Thought Frequencies is released this month on the wonderful Sub Rosa label, available either as a download, or as a CD (which is accompanied by a 20-page illustrated booklet detailing the history of radionics' relationship with acoustics).

During the course of the Radionics Radio project many people enquired "isn't radionics a quack medicine?"  The answer is not so simple.  Over the years there have been many radionics researchers and practitioners, all characterised by a sincerely held belief that our scientific understanding of reality isn't all it seems.   Overlooking the ins and outs of radionic philosophy, Radionics Radio focusses firmly on the mid-20th century technologies, particularly those of Oxford's Delawarr Laboratories who were dedicated to establishing a physical basis for radionics.  This is because one of the most fascinating electronic soundmaking devices ever produced emerged from this laboratory.

Delawarr Laboratories' experiments with electronic sound began in the late 1940s, culminating in 1962 with the emergence of the Delawarr Multi-Oscillator.  The purpose of the Multi-Oscillator was to provide its operator with a means to find combinations of audio frequencies that related to thoughts (in a process similar to dowsing).  To those unacquainted with radionics, this may seem odd, yet composers do that selfsame thing whenever they compose: a theme is held in the mind (e.g. "a horse") and the music is intuitively built up.

In practice, the clinical Multi-Oscillator produced very dissonant drones in odd tuning relationships.  The sounds weren't viewed as music by Delawarr Laboratories, although coincidentally, the soundmaking techniques paralleled developments in avant-garde music.

Radionics Radio was launched in 2014 as an application: a web-based reworking of the Multi-Oscillator.  Controversially, I believe it's the UK's first ever publicly-funded radionics 'device' (funded by the Arts Council in a roundabout way).  The app was a single oscillator that users could control whilst thinking of a thought, intuiting any moments where the frequency corresponded with the thought.  A list of intuited frequencies would be sent in alongside the thought or phrase, and I would re-constitute them as drones to be broadcast on Resonance 104.4FM.  Gradually, sets of different thought-frequencies were sequenced in time, or even merged if harmonies corresponded.  Ultimately, a system was developed where microtonal scales could be built-up from thought-frequencies.

As I'm not a radionics practitioner, the app's main purpose was to collect sonic material for my compositions.  These compositions (such as 'Peter send me money so I can fix the boat you promised') are microtonal due to the nature of the frequency selection (which either "occultly" embody the thought, or are merely arbitrary selections, depending on your viewpoint).  It is during the process of composing with the frequencies that a form of mental searching takes place (comparable to radionic technique) to musically capture the mood of the thought.  Initially, Resonance FM listeners sent in thought-frequencies, but over time, more and more radionics aficionados from around the world experimented with the Radionics Radio app, producing submissions that somehow seemed more "plausible" (e.g. frequencies spread out more evenly)

An Album of Musical Radionic Thought Frequencies is the culmination of compositional complexity.  It only contains a handful of submissions (out of over two-thousand) that I have musically-worked-out as pieces.  Initially, I treated all the thought-frequencies as immutable chords, but soon realised that octaves and sub-octaves could be created from those frequencies without interfering with the unique harmonic moods (or detracting from radionic philosophies, viz. remarks on sympathy between octaves in Matter in the Making [1966])

An example is shown here.  One of Delawarr Laboratories' original thought-frequency sets is "Resentment" (8Hz, 59Hz, 80Hz, 130Hz and 350Hz).   Although it's a microtonal run of frequencies, it can be broadly represented on a score:

Microtones cannot truly be reduced to standard musical notes, but a full scale of "Resentment" in all its octaves and sub-octaves would look something like this:

And so this is the basis of the Radionics Radio album, which marks the end of my Sound and Music sponsored composer residency at Resonance FM.  A massive thank you to everybody who helped with this intricate project, and to all users of the Radionics Radio application!

Resonance FM will be repeating early episodes of the Radionics Radio radio series starting on Thursday 11th August.