Documentation

For notation systems using staff lines (i.e. CMN), this type represents staff number.

Rules:

• Incrementing staff lines means moving upward.--
• For staff systems with an odd number of lines, 0 is the middle staff.
• For staff systems with an even number of lines, 0 is the staff below the middle space.

I.e. in CMN the staff lines are [-2..2], with negative numbers representing the lines below the middle line and positions numbers representing the lines above it.

For notation systems using staff lines, this type represents the difference betwee two staff positions (i.e. one diatonic step in CMN).

Rules:

• Incrementing half spaces means moving upward.
• For staff systems with an odd number of lines, 0 is the middle staff.
• For staff systems with an even number of lines, 0 is the middle space.

I.e. in CMN, the non-ledger positions are [-5..5] with the even numbers representing lines and the odd representing spaces and with positive numbers representing positions above the middle line and negative numbers representing positions below.