Data Section

Header Chunks

Page Header CHUNK (EMPTY)

• Default anchor: None
• Reference point/Page Origin: Top left corner of page
• Tags: Width, Height. For a file with simulated part ordering, use values of zero for Width and Height.

Staff Header CHUNK (EMPTY)

• Comments: The staff size is described by the Height tag, which contains the vertical distance between the top and bottom staff lines. The default number of staff lines is 5. If only one part is present on this staff, the Part ID tag should be appended here, so it won't have to be appended individually to each symbol in the Staff list.
• Default anchor: System origin
• Reference point/Staff Origin: Top line of staff
• Tags: Part ID, Placement tags, Width, Height, Number of Staff Lines, Silent (eg. for ossias)

System Header CHUNK (EMPTY)

• Default anchor: Page origin
• Reference point/System Origin: Staff origin of first (top) staff
• Tags: Placement tags, Width, Height.

Time-Slice CHUNK

• time slice type (BYTE)
  • 1 = measure-start
  • 2 = event
• start time (RATIONAL)
  • depends on time-slice type
  • type 1: measure start time, relative to start of score
  • type 2: event start time, relative to previous measure-start time-slice
• Default anchor: Previous measure-start time-slice, or staff origin (for first time-slice in a staff)
• Reference point: Bottom staff line at its intersection with the time-slice.