It should cost 3700 gp for its Market Price for the three per day. If you want I could stat up the whole thing.
At will version should be 6100 gp.
Note: The base item for this was a Masterwork Musical instrument, so it grants +2 on all performance checks with it, in addition to its magical effects.
To make the 3/day version you would have to pay 1850 in gp.
To make the at-will version you would have to pay 3050 in gp.