Re: TabStaff feature requests

From:

Steve Yegge

Subject:

Date:

Wed, 24 Nov 2010 08:16:03 -0800

expectations. I assumed incorrectly that for purposes of relative

pitch calculation, the harmonics would be ignored, allowing you

to focus on the base string pitches.

It requires a bit more arithmetic this way, but it's logical enough.

Thanks for the patch -- you've fixed the biggest problem in my

150-page pile of arrangements!

-steve

On Wed, Nov 24, 2010 at 7:56 AM, Steve Yegge <address@hidden> wrote:

Hi Marc,

I've tried out your patch and it works like a charm!
Unfortunately it seems to be happiest in absolute pitch mode.

When I switch to relative mode it yields unexpected results.

I've modified your harmonic-test.ly to demonstrate the issue.

\include "./harmonic.ly"

test = {
e,4
\harmonicByRatio #1/2 e,\6
\harmonicByRatio #1/3 a,\5
\harmonicByRatio #2/3 d,\4 |
\harmonicByRatio #1/4 { g8\3 b\2 e'\1 b\2 < g b e >2 } |

e,1 | % check whether tab note head is restored
\harmonicByFret #12 e'4\1
\ottava #1
\harmonicByFret #7 e'4\1
\harmonicByFret #5 e'4\1
\ottava #2

\harmonicByFret #4 < b\2 e'\1 >4 |
\harmonicByFret #3 < g\3 b\2 e'\1 >4
\harmonicByFret #2.7 < g\3 b\2 e'\1 >4
\harmonicByFret #2.3 < g\3 b\2 e'\1 >4

\harmonicByFret #2 < g\3 b\2 e'\1 >4 |
\ottava #0
e,1 | % check whether tab note head is restored
}

reltest = \relative c {
  b'8\2 [ e\1 ] % verify pitch for open strings

  \harmonicByFret #12 b\2 [
  \harmonicByFret #12 e\1 ]
  \harmonicByFret #7 b\2 [
  \harmonicByFret #7 e\1 ]
  \harmonicByFret #5 b\2 [
  \harmonicByFret #5 e\1 ]

}

\paper {
  ragged-right = ##f
}

\score {
  <<
   \new Staff {
   \new Voice {
   \clef "treble_8"

   \override Voice.StringNumber #'transparent = ##t
   \test
   \break
   \reltest
   }
   }
   \new TabStaff {
   \new TabVoice {

   \test
   \break
   \reltest
   }
   }
  >>
}

At first glance it appears to be adding an octave to the current base

pitch each time a harmonic is created.

-steve