All effects are added to the entire party with timing 4096 (end at ticks) and duration (nGameTime + 100)
Display Special Effect Icon (0x8E)
param2 (Icon) = 40 Bard Song
Morale Modifier (0x17) - Sets the Morale stat of the targetted creature(s) to 10.
param1 (Ignored) = 10
param2 (Ignored) = 0
Note: this opcode is weird in BG2:ToB, because in all other games, the standard Modifier types apply, so this would be add 10 to morale, rather than set to 10
Cure Horror (0xA1)
param1 (Irrelevant) = 1
param2 (Irrelevant) = 0
Protection from Opcode (0x65)
param1 (Irrelevant) = 1
param2 (Opcode) = 24 (State: Horror)
Wow, that's rather underwhelming.