case FILTER_ENABLED: case FILTER_ENV_AMOUNT: case FILTER_ATTACK: case FILTER_DECAY: case FILTER_SUSTAIN: case FILTER_RELEASE: case FILTER_HOLD: case FILTER_OFFSET: case FILTER_RESONANCE: case FILTER_TREMOLO: case FILTER_TREM_LFO: output_note("NOTE: trying to set some filter-param, but filter is disabled"); break;