OptionaltonicTonic spelling to anchor the key, for a caller that already knows how the
piece is written. It must sound the key's own root pitch class; anything
else is rejected rather than spelled. Defaults to the conventional
spelling the key itself is written with. Accepted as a note name, a MIDI
number, note data, or a Note.
OptionalbudgetUpper bound on the work the line may cost; defaults to the generation budget.
Options for spellLine.