This is an interactive piece for trumpet solo or duet and computer (Max/MSP) in 11-limit just intonation. The live performer(s) play improvisatory material governed by a performance algorithm. By means of a frequency follower the live performers can trigger samples stored in the computer which were recorded by Professor Leonard Ott in the Owen Hall Recording Studio. The combination of the sampled and live materials forms a drone-based texture that envelops the listener in a quadraphonic speaker array. In the quad version the samples for the ratios 7/4, 9/8, 11/8, and 15/8, are panned around the audience in slowly phased Lissajous patterns. The Lissajous patterns are generated by two sub-audio sine waves which are tuned to the ratios they are panning. The title and character of the piece were inspired by this stanza from Allen Ginsberg’s 1954 poem “Song:”
I always wanted,
I always wanted
to the body
where I was born.
Thomas Hubel and Kevin Swenson – Trumpets
For the scale with ratios and their order of introduction see the document hosted at this link.
Quadrangularis Reversum is a piece inspired by Harry Partch’s marimba-like instrument of the same name which is a real-time interactive duet between a solo violist and six unique FM synthesis sounds crafted in Max/MSP. The ratios available on Partch’s instrument, situated so that the player can easily play them in sweeping arpeggios, are here rendered as frequencies in the free just-intonation program Scala and stored as a list in a coll object in Max. The chords are first tuned to the C subharmonic series, and then to the F harmonic series. After a meditative introduction, the Viola player chooses to play various notated figures in a semi-random order they wish, triggering different “chords” from the C subharmonic series in Max, each one related to the original arpeggios found on Partch’s instrument. These choices are stored as an independent list and are recalled by Max to trigger the same “chords” retuned to fit into the F harmonic series when the violist exists the stage, and the material which was layered in the beginning returns as if a phantom version of itself. Thus the subtitle What’s Inside the Mirror relates first to the form of the piece, as well as to Partch’s construction of the Quadrangularis which was itself a mirrored version of an older instrument he designed called the Diamond Marimba. It is a mystical piece, which hopes to find the listener reflecting on the present moment, the eternal now – to find a quiet moment with themselves outside of the mad rush of the human world. Quadrangularis was premiered at my senior recital at University of the Pacific on November 28th 2018.
Krista Swenson – Viola Solo
Recorded Live at Faye Spanos Concert Hall
Produced by Kevin Swenson
Engineered by Professor Jeff Crawford