ref: 7c3a90bf0181127fab4cd98ad4a3173a2984f51e dir: /audio/sfx/ledge_1.asm/
SFX_Ledge_1_Ch4: duty 2 unknownsfx0x10 149 unknownsfx0x20 15, 242, 0, 4 unknownsfx0x10 8 endchannel