Nne |

site na lat. nona – itoolu

1) Oge etiti n'ogo nke nzọụkwụ itoolu; nke nọmba 9 gosipụtara. Enwere obere nona (obere 9), nwere 6^1/2 ụda, nnukwu nona (nnukwu 9) - 7 ụda na ụba nona (elu 9) - 7^1/2 ụda. Nona bụ ihe mejupụtara (karịa olu nke octave) ma a na-ewere ya dị ka nchikota octave na nke abụọ, ma ọ bụ dị ka nke abụọ site na octave.

2) Nzọụkwụ itoolu nke ọnụ ọgụgụ diatonic nke abụọ-octave. Lee etiti etiti, ọnụ ọgụgụ diatonic.