Instrument now takes a frequency, rather than a pitch
Add Sustain When Hands Are Extended
Revert "Add Sustain When Hands Are Extended"

This reverts commit 45a8f4c18f8d13670462b5f8b08243bfa6e304c1.
Merge branch 'master' into reflectortracking
note direction converts freq hz to Frequency obj
go back to play note position