RE: : Re: transpose range

[Peter Gentry]

-----Original Message-----
From: David Kastrup [mailto:address@hidden 
Sent: 26 June 2017 13:43
To: Peter Gentry <address@hidden>
Cc: 'Gianmaria Lari' <address@hidden>; Lilypond <address@hidden>
Subject: Re: : Re: transpose range

"Peter Gentry" <address@hidden> writes:

> You will need to modify the attach file (instrument_ranges.ly) since you are 
> only interested in one instrument. 
>
>  
>
> A numeric pitch can be constructed from three components of the 
> lilypond pitch p
>
>  
>
> 1.    The octave o obtained from  (ly:pitch-octave p))  
> 2.    The note n obtained from (ly:pitch-notename p))  
> 3.    The semitone  a  obtained from the alteration  (* 4 
> (ly:pitch-alteration p))  note alteration is in quarter tone steps
>
>  
>
> The numeric pitch (op) is calculated by (define op (+ (* 14 o) (* n 2) (/ a 
> 2)))  “op is a unique number representing the pitch of the note”

Uh, that's pretty bad since it sees eis as equal to fes.  Anything wrong with 
just using (ly:pitch-tones p) instead?

--
David Kastrup

a. I had not heard of ly:pitch-tones p)
b. for most folks eis is the same sound as fes. Neither my battered old ears or 
my tuner could  detect the difference.  😊