public Instrument AddInstrument(
	InstrumentType instrumentType,
	Scale scale,
	int octave = 3
)

Public Function AddInstrument ( 
	instrumentType As InstrumentType,
	scale As Scale,
	Optional octave As Integer = 3
) As Instrument

public:
Instrument^ AddInstrument(
	InstrumentType instrumentType, 
	Scale^ scale, 
	int octave = 3
)

member AddInstrument : 
        instrumentType : InstrumentType * 
        scale : Scale * 
        ?octave : int 
(* Defaults:
        let _octave = defaultArg octave 3
*)
-> Instrument