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Sonata for Microtonal Piano is a sonata for specifically microtonally tuned piano by Ben Johnston written in 1964 (see also just intonation). When the movements are played in an alternate order the piece is titled Grindlemusic.

The piece uses, "chains of just tuned (untempered) triadic intervals over the whole piano range," with very few, only seven, piano keys having octave equivalents, thus providing eighty-one different pitches (there are eighty-eight white and black keys total). "Effectively, for the listener, there are three main gradations of consonance/dissonance: (1) smooth untempered thirds and fifths, which have the least amount of harshness caused by acoustical beats; (2) compounds of these...; and (3) chromatic or enharmonic intervals...which sound 'out of tune.'"

"This suggested...the possibility of two opposite systems for the deployment of pitches: one that synchronized pitch choices with the layout of consonant and dissonant intervals on the keyboard , and a violently contrasting one in which the system for choosing pitches, a twelve-tone-row procedure derived largely from certain practices of Berg and late Schoenberg , either ignores or flaunts the consonance/dissonance keyboard layout . There are two contrasting movements of each of these types."

"This makes possible a Janus-faced work, in which, with only the third movement similarly located in both versions, permutations of the placement of the other three movements creates an alter-ego relationship between the two versions, called respectively Sonata for Microtonal Piano and Grindlemusic. In the Sonata version, the movements correspond to the classical sonata scheme: the 'sonata-allegro,' the 'scherzo,' the songlike 'slow movement,' and the 'finale,' which is in this case a meditative adagio. All movements, however are cast in the common ballad mold, AABA, as is each of the two entire versions, the Sonata and Grindlemusic."

In the words of the composer:

"The Sonata, whether presented as beauty or as the beast, is a monstrous parody-enigma, allusive, referential, sometimes derisive, distorted, a tissue of familiarity in radically strange garb....Whatever the closing mood brings to mind, it is overlaid with irony and derision. The Sonata sequence poses the challenge: fast, faster, slow, slower. When, in the Sonata's finale, the knots are finally untied, will it be clear from what Houdini has escaped?"

"All tempos, all phrase and section lengths, and in certain parts of the 'finale' (which opens Grindlemusic, the sequence closing with the 'scherzo'), even note-to-note timings conform to a proportional scheme derived from a single pattern of changes in AABA form. This pattern is associated with two distinct motivic groups at different points in the work."

The piece has been recorded and released on:

• Microtonal Piano by Ben Johnston (1997). Phillip Bush, piano. Koch International Classics 3-7369-2.

"Though the piece was recorded as the Sonata, and though Johnston and I both agree that a live performance of Grindlemusic would contain subtle alterations, the metric modulations between movements are nevertheless worked out to arrive at identical tempos in each version. Therefore I feel that a passable sense of Grindlemusic can be experienced by simply reprogramming the tracks on your compact disc player. To program the tracks for Grindlemusic, select the track order 9, 6, 8, 7." The Sonata being track order 6, 7, 8, 9. 8, being B, stays in the same place.

Movements

Sonata for Microtonal Piano

1. Sonata-allegro
2. Scherzo
3. Slow movement
4. Finale

Grindlemusic

1. Premises
2. Questions
3. Soul Music
4. Mood Music

Sonata-allegro = Questions, Scherzo = Mood Music, Slow movement = Soul Music, Finale = Premises.

References

1. ^ Johnston, Ben and Gilmore, Bob (2006). "Maximum Clarity" and Other Writings on Music, p.185. ISBN 978-0-252-03098-7.
2. Liner notes for SOUND FORMS FOR PIANO, New World Records 80203, fetched from "Archived copy" (PDF). Archived from the original (PDF) on 2011-05-17. Retrieved 2007-11-13.{{cite web}}: CS1 maint: archived copy as title (link)
3. ^ Johnston and Gilmore (2006), p.186.
4. Microtonal Piano by Ben Johnston (1997). Phillip Bush, piano. Koch International Classics 3-7369-2. Liner notes.

Further reading

• Gibbens, John Jeffrey. "Design in Ben Johnston's Sonata for Microtonal Piano". Interface, Vol. 18 (1989), pp. 161–194.

v t e Microtonal music
Composers	Richard Barrett Béla Bartók Easley Blackwood Jr. Heinz Bohlen Julián Carrillo Franklin Cox Mildred Couper John Eaton Brian Ferneyhough Michael Finnissy Bjørn Fongaard Alois Hába Christiaan Huygens Charles Ives Ben Johnston György Ligeti Stu Mackenzie Claus-Steffen Mahnkopf Joel Mandelbaum Joe Maneri Roger Redgate John Schneider Sevish Ezra Sims Nicola Vicentino Claude Vivier Elaine Walker Ivan Wyschnegradsky La Monte Young
Inventors	Glenn Branca Wendy Carlos Ivor Darreg Adriaan Fokker Lou Harrison Yuri Landman Harry Partch Tui St. George Tucker Nicola Vicentino
Tunings and scales	Non-octave- repeating scales Alpha scale Beta scale Gamma scale Delta scale Lambda scale (Bohlen–Pierce scale) Equal temperament 15 17 19 22 23 24 31 34 41 53 58 72 96 Just intonation Harry Partch's 43-tone scale Double diatonic
Concepts and techniques	Limit Otonality and Utonality Semitone Sonido 13 Xenharmonicity Tonality diamond
Groups and publications	Boston Microtonal Society Genesis of a Music Huygens-Fokker Foundation
Compositions	Beauty in the Beast quarter tone pieces just pieces Mother Sonata for Microtonal Piano Suite for Microtonal Piano Twelve Microtonal Etudes for Electronic Music Media Flying Microtonal Banana K.G. L.W.
Other topics	Enharmonic keyboard Generalized keyboard Modernism (music)

• Compositions by Ben Johnston
• Compositions in just intonation
• Piano sonatas
• 1964 compositions
• 5-limit tuning and intervals