MuseScore

[waf]

http://musescore.org/en/

http://musescore.org/en/screen-shots

http://musescore.org/en/handbook

MuseScore is a free cross platform WYSIWYG music notation program, licenced under GNU GPL. Some highlights:

    * WYSIWYG, notes are entered on a "virtual note sheet"
    * Unlimited number of staves
    * Up to four voices per staff
    * Easy and fast note entry with mouse, keyboard or MIDI
    * Integrated sequencer and FluidSynth software synthesizer
    * Import and export of MusicXML and Standard MIDI Files (SMF)
    * Platform independent code, binaries available for Linux and Windows
    * Available in 15 languages
    * GNU GPL licenced


MuseScore is available in English, German, French, Dutch, Spanish, Italian, Portuguese, Russian, Galician, Turkish, Brazilian Portuguese, Hindi, Danish, Finnish and Swedish.

[bubbel]

Hello,

I found "LMMS" in the repo. Look screenshot.

Perhaps that is an alternative.

Greetings
bubbel

[PhiX]

LMMS is not designed to write musical sheets, as MuseScore is.