VJOFan wrote: Fri Jul 18, 2025 10:03 am
How does that translate into writing sheet music for wind players to perform? Is there a special staff to learn to read?
The “H-I-J-K-L-black-note” system is designed for theoretical discussion of pitch-classes in 12-note equitemperament. In other words, to give the “black-notes” their own single-symbol (and single-syllable) names—instead of being thought of (and notated) as “altered white-notes”—in analysis, composition and more general theory. It is not designed for direct reading by instrumentalists from a “special staff”. However, a special (non-diatonic) staff can be used for direct composition.
Sixty years ago, I experimented with just such a “Grand Staff” for “accidental-free” composition: using 12-tone graph paper, consisting entirely of spaces (separated by thin horizontal lines). Some lines (e.g. those bracketing C4 and octaves) are emphasized in order to give some vertical orientation for the composer. A note (to be played) is represented by placing a coloured segment (e.g. coloured pencil mark) in the space representing the desired note. Different colours for different instrument groups. Placement and length of segment represent beginning and duration of note (read left-to-right). This allows for anything ranging from “free” atonal (serial or otherwise) writing to structured (e.g. “synthetic-scale”) systems. In the latter case, “non-scale” pitch-classes can be greyed out. Of course, the notes are then transcribed into standard diatonic staff notation for the individual instruments.
I attach a snippet of an original score for wind trio [for alto flute (pink), clarinet (purple) and bass trombone (brown)] using the darkest possible version of all seven-note scales consisting of combinations of major and minor seconds spanning an octave, with C as the tonic: C, J, D, E, L, H, I, (C). [In diatonic notation, this would be: C, Db, Ebb, Fb, Gb, Ab, Bb, (C).] This movement consists of a series of cadences on (3-part voicings of) the tonic ninth chord: C-D-L-I-J (C-Ebb-Gb-Bb-Db), separated by jolly “chatter” among the three voices. The final cadence chord is a sustained incomplete ninth: C2 (root, trombone), D4 (third, clarinet), J5 (ninth, alto flute)—an exploded minor-second cluster (not shown here).
If you were to punch out the line segments and turn the paper 90º CW, you’d have what looks a lot like a portion of a player-piano roll (bass notes to the left, treble to the right, paper glides up over the suction holes).
No doubt, this accidental-free composition idea could be “computerized” and linked to a synthesizer and manuscript-writing software. Perhaps this has already been done; if not, there’s a patent waiting to be awarded.
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