Quasi-diatonic MOS notation: Difference between revisions

Line 4:

== Note names ==

The root is A (A4), fixed to 440 Hz by default. ~~Starting~~ from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks [[User:CompactStar]]!), where the nominals repeat. So nominals in order are always A, B, C, D, E, F, G, etc. with the darkest mode being on B. For example, in 5L 3s, the darkest mode is sLsLLsLL, so the notes ABCDEFGH represent the scale LsLsLLsL on A. This is done to make it backwards-compatible with existing diatonic notation, which starts on B for its darkest mode, Locrian. I is skipped, as in Bohlen-Pierce, to avoid confusion, and V is skipped as well.

The root is A (A4), fixed to 440 Hz by default.

By default, starting from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks [[User:CompactStar]]!), where the nominals repeat. So nominals in order are always A, B, C, D, E, F, G, etc. with the darkest mode being on B. For example, in 5L 3s, the darkest mode is sLsLLsLL, so the notes ABCDEFGH represent the scale LsLsLLsL on A. This is done to make it backwards-compatible with existing diatonic notation, which starts on B for its darkest mode, Locrian.

However, to enable compatibility with systems such as antidiatonic melodic notation and Bohlen-Pierce notation, the mode on A used for nominals can be explicitly specified. More info in the Staves section.

I is skipped, as in Bohlen-Pierce, to avoid confusion, and V is skipped as well.

Note that this is incompatible with conventional Bohlen–Pierce notation itself, as it refers to BP's note "C" as A.

Line 25:

Line 31:

== Staves ==

The number of staff lines is equal to half the number of scale steps plus 1 (rounding up). So a scale with 8 notes would have 5 lines, a scale with 9 notes would have 6 lines, and a scale of 11 notes would have 7 lines. A3 is always on a staff line.

The MOS name is always written at the top of the staff, along with the mode on A used for nominals, if that differs from the default.

New clefs need to be introduced to refer to arbitrary notes, in order to bridge the gap between the A clef (introduced specifically for this notation) and the C, F, and G clefs (shared with diatonic), and allow for the convenient and analogous notation of a scale with any number of notes.

@@ Line 4: / Line 4: @@
 == Note names ==
-The root is A (A4), fixed to 440&nbsp;Hz by default. Starting from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks [[User:CompactStar]]!), where the nominals repeat. So nominals in order are always A, B, C, D, E, F, G, etc. with the darkest mode being on B. For example, in 5L&nbsp;3s, the darkest mode is sLsLLsLL, so the notes ABCDEFGH represent the scale LsLsLLsL on A. This is done to make it backwards-compatible with existing diatonic notation, which starts on B for its darkest mode, Locrian. I is skipped, as in Bohlen-Pierce, to avoid confusion, and V is skipped as well.
+The root is A (A4), fixed to 440&nbsp;Hz by default.
+By default, starting from B, the notes of the darkest mode of the MOS are labelled until A an equave up (thanks [[User:CompactStar]]!), where the nominals repeat. So nominals in order are always A, B, C, D, E, F, G, etc. with the darkest mode being on B. For example, in 5L&nbsp;3s, the darkest mode is sLsLLsLL, so the notes ABCDEFGH represent the scale LsLsLLsL on A. This is done to make it backwards-compatible with existing diatonic notation, which starts on B for its darkest mode, Locrian.
+However, to enable compatibility with systems such as antidiatonic melodic notation and Bohlen-Pierce notation, the mode on A used for nominals can be explicitly specified. More info in the Staves section.
+I is skipped, as in Bohlen-Pierce, to avoid confusion, and V is skipped as well.
 Note that this is incompatible with conventional Bohlen–Pierce notation itself, as it refers to BP's note "C" as A.
@@ Line 25: / Line 31: @@
 == Staves ==
 The number of staff lines is equal to half the number of scale steps plus 1 (rounding up). So a scale with 8 notes would have 5 lines, a scale with 9 notes would have 6 lines, and a scale of 11 notes would have 7 lines. A3 is always on a staff line.
+The MOS name is always written at the top of the staff, along with the mode on A used for nominals, if that differs from the default.
 New clefs need to be introduced to refer to arbitrary notes, in order to bridge the gap between the A clef (introduced specifically for this notation) and the C, F, and G clefs (shared with diatonic), and allow for the convenient and analogous notation of a scale with any number of notes.