Opcodes used for the initialization of variables:
The opcodes that can generate another initialization pass are:
The opcode p can be used to find score p-fields at i- or k-rate.
nstrnum returns the instrument number for a named instrument.
| ![[Note]](images/note.png)  | Note | 
|---|---|
| Note that a instrument may modify the p3 (duration) parameter
  at initialisation time.  For example statements like iattack = 0.02 irelease = 0.04 isustain = p3 p3 = iattack + isustain + ireleaseare valid. |