Octaves may pertain-to an epiphany.Logical formLearned from2 sentences. Pipes may sound at consecutive octaves.Logical formLearned from2 sentences. Octaves can be on a piano.Logical formLearned from2 sentences. A voice may range over some octaves.Logical formLearned from2 sentences. A vocal may span some octaves.Logical formLearned from2 sentences. Octaves may undergo a grouping.Logical formLearned from2 sentences. Octaves may pertain-to a note.Logical formLearned from2 sentences. A vocal range may cover some octaves.Logical formLearned from2 sentences. Jumps may span some octaves.Logical formLearned from2 sentences. Some octaves can be in a voice.Logical formLearned from2 sentences. Octaves can be diminished.Logical formLearned from2 sentences. Some octaves may be invented by musician.Logical formLearned from2 sentences. Some musicians may play parallel octaves.Logical formLearned from2 sentences. Some octaves can be in a song.Logical formLearned from2 sentences. Some octaves can be constituted-of-or-filled-with bells.Logical formLearned from2 sentences.