The researchers estimate that the five-hole flute would produce an even wider mix of notes.

VOA: special.2009.08.18

Okay, so we have-- there's a whole idea of octave duplication— sometimes six notes, sometimes five notes.

现在我们了解到,一整套的重复八度,有时是六音符,有时是五音符

耶鲁公开课 - 聆听音乐课程节选

Five notes within the octave just there.

八度里只有五个音符

耶鲁公开课 - 聆听音乐课程节选

Once I learned how easy it was to create melodies simply by shuffling five notes, I knew that I would never want to stop making music, no matter how many baby steps it took.

WSJ: How a Middle-Aged Dog Learned New Guitar Tricks

As I scanned the Web prior to posting, I noticed that the Council on Foreign Relations in New York, which has now commenced its own weekly Asia recap, was hitting all five notes I had in mind.

FORBES: Asia's Week: Kuroda Speaks Louder Than Kim

He takes Liane Hansen through the last of this year's list of five: Notes on a Scandal, with music composed by Philip Glass.

NPR: Oscar-Nominated Scores: 'Notes On a Scandal'