Changes

{

uint32_t mask; // represents bitmask of used channels in this song

};

After this bitmask, there is <channels count> offsets to channel opcode data counting from current offset. Each offsets is a relative offset based on the address *next to* the offset itself. (This is a general rule for early versions of AKAO to interpret relative offsets.)

=== Channel Commands [AKAO Opcodes] ===