The Instrument Info window lets you change the current instrument's name, volume, finetune offset, and loop parameters.

   The name is what is displayed in the Instruments window.  The volume is a specific playing volume for the current instrument.
   The volume range is 0-64, 64 being the loudest.
   The finetune value adjusts the pitch of the current instrument by small increments.  To lower the current instrument's pitch enter a negative value, with -7 as the lowest.  To raise the pitch enter a positive value up to 7.  A finetune value of 0 plays the instrument at its normal pitch.
   The instrument looping describes what happens when the instrument is played.  After an instrument is played, you can set it to repeatedly loop over a part of the instrument.  The loop start is the byte in the instrument to loop back to.  The loop size is how many bytes to loop.  It is important that the loop start + the loop size does not exceed the instrument's size (displayed at the top right of the Instrument Info window.)