Clef icons

[Friedrich W. H. Kossebau]

Am Samstag, 11. August 2012, 15:12:19 schrieb Yuri Chornoivan:
> написане Sat, 11 Aug 2012 15:04:22 +0300, Friedrich W. H. Kossebau
> 
> <kossebau at kde.org>:
> > Am Montag, 6. August 2012, 21:59:22 schrieb Yuri Chornoivan:
> >> написане Mon, 06 Aug 2012 20:09:27 +0300, Markus <kamikazow at gmx.de>:
> >> > Am Sonntag 05 August 2012, 18:45:07 schrieb Yuri Chornoivan:
> >> >> написане Sun, 05 Aug 2012 18:09:56 +0300, Inge Wallin
> >> >> 
> >> >> > Nice clefs!  Do you also have the svg for them?
> >> >> 
> >> >> Attached. Obtained using MusixTeX.
> > 
> > Smart :)
> > 
> >> > Huh, nothing shows up in Karbon 2.5rc
> >> 
> >> Oops again, seems glyphs can be read only by Inkscape and Opera here...
> >> 
> >> Re-packaged for Karbon (it's "trebble" because it's "trebble" in code).
> > 
> > So what would be the proper license if these icons are "Obtained using
> > MusixTeX"? Anyone knows?
> 
> "MusiXTeX fonts may be freely copied, duplicated and used in conformance
> to the GNU General Public License (Version 2, 1991,
> see included file gpl.txt)."

GPL2 might be a no-go with Calligra, or? At least the music shape source code 
itself is LGPL.

Now the question is if these icons are derived works and thus need to have the 
same license, or are new creations created _with_ the font. At least the PNG 
icon to me would not need to have the same license, as this does not have any 
font data anymore, but is just a rendering of one "glyph" of the font.

Given that the other icons of the music shape do not have a vector/SVG 
version, I would guess we could just go with the 22px-png files only. But 
let's better check with someone who feels clueful.

Too bad there is no easy way to just have the icons rendered by the shape 
itself, as it knows how to render clefs quite well :)

Cheers
Friedrich