Timbre Shifting script borrows notes froms neighbouring keygroups and retune them to alter timbre

--------------------------------------------------------------------------------
--! @example TimbreShifting.lua
--! Timbre Shifting script
--! borrows notes froms neighbouring keygroups and retune them to alter timbre
--------------------------------------------------------------------------------

shiftKnob = Knob("shift", 0, -5, 5, true)

function onNote(e)
    local shift  = shiftKnob.value
    local note = e.note + shift
    local id = playNote(note, e.velocity, -1)
    changeTune(id, -shift, false, true)
end

function onRelease()
  -- eat event release is automatic in playNote
end