I do want to hear A2 when I play A3. But I want in effect to cut out the physical keyboard from sounding any of the octave 2 keys. So I need A3 and all the way up all transposed down. Ie C7 will play C6, octave 6 will play as 5, octave 5 as 4, 4 as 3 and 3 as 2.
Thank you for your remarkable patience.