The phrase 'how many notes' is correct and usable in written English.
You can use it when you are asking someone to count how many notes exist or are associated with something. For example: "How many notes are in the C major scale?".
How many notes can we fit into a single song?
How many notes is in this opening gambit here?
How many notes can you find in a monotone, after all?
Nobody knows how many notes and coins will be needed—habits vary widely among euro-area countries (see chart 2).
Tell me how many notes I have, and I'll name that tune!" "Do you see yourself as a centrist?" I ask.
Mr. Shohl conveyed that cryptic image imaginatively, using vaguely guitarlike figuration (broken chords and tight counterpoint), but avoiding the instrument's natural constraints — which note combinations can be reached, for example, or how many notes a chord can have.
Finally, the students were asked to estimate how many suicide notes they had actually categorized correctly, and how many they thought an average student would get right.
When Mr. Schulte followed the Fantasy-Variations with the recent Romanza for solo violin after intermission, one noticed immediately how many fewer notes there were.
The wider public perhaps also doesn't appreciate just how many high notes Johnson-Thompson hit while battling it out with Thiam for glory.
Objects stored in a Stream are generally spaced in time; each stored object has an offset usually representing how many quarter notes it lies from the beginning of the Stream.
How many promissory notes, in other words, can Fed and Treasury issue without 'over-promising'?
