| O | Sound.SC3.Lang.Data.Vowel |
| occ | Sound.SC3.Lang.Control.Duration, Sound.SC3.Lang.Pattern |
| occurencesOf | Sound.SC3.Lang.Collection |
| octave | Sound.SC3.Lang.Control.Pitch, Sound.SC3.Lang.Pattern |
| octpc_to_cps | Sound.SC3.Lang.Math, Sound.SC3.Lang.Pattern.Plain |
| octpc_to_midi | Sound.SC3.Lang.Math, Sound.SC3.Lang.Pattern.Plain |
| Omni_Mode_Off | Sound.SC3.Lang.Control.Midi |
| Omni_Mode_On | Sound.SC3.Lang.Control.Midi |
| OptDur | Sound.SC3.Lang.Control.Duration, Sound.SC3.Lang.Pattern |
| optDur | Sound.SC3.Lang.Control.Duration, Sound.SC3.Lang.Pattern |
| OptPitch | Sound.SC3.Lang.Control.Pitch, Sound.SC3.Lang.Pattern |
| optPitch | Sound.SC3.Lang.Control.Pitch, Sound.SC3.Lang.Pattern |
| overlaps | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| OverlapTexture | |
| 1 (Data Constructor) | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| 2 (Type/Class) | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureM | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureR | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureS | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureS_pp | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureU | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTextureU_pp | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| OverlapTexture_ | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTexture_env | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTexture_iot | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTexture_nrt | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| overlapTexture_nrt_st | Sound.SC3.Lang.Control.OverlapTexture, Sound.SC3.Lang.Pattern |
| OW | Sound.SC3.Lang.Data.CMUdict |
| OY | Sound.SC3.Lang.Data.CMUdict |