Assertion: whistle's sound | /r/HasProperty | bb
Facets:
Source sentences:
text: The fife is keyed as above (playing a Bb sounds like a Bb), but sheet music for this fife is written as if the instrument was a D instrument - in other words, if the sheet music says to play a D, you would play the note with all holes closed (however, the actual sound of this note would be Bb).