The part transposition object

Type: Dictionary

Describes a part's instrument transposition, including the transposition interval and number of fifths at which key signatures "flip" enharmonically.

Keys

Name Type Required? Description
interval interval Yes
keyFifthsFlipAt integer (signed) No When transposing key signatures to accommodate this part, "keyFifthsFlipsAt" describes the point at which the key signature "flips" enharmonically (to avoid an overly large number of sharps or flats).

Non-negative values (including 0) mean "subtract 12 fifths," and negative values means "add 12." If this value isn't provided, default behavior is to not flip the key signature.
prefersWrittenPitches boolean No Specifies that this instrument prefers displaying written pitches (e.g., transposed pitches) even in the context of concert-pitch scores.

By convention, this is applied to piccolos, glockenspiels and double basses.

If not provided, this should be interpreted as false.

Parent objects

This object is used by the following parent objects: