NoteEdit is described as 'musical score editor for Linux. It can import/export MIDI and MusicXML, export Lilypond, MusiXTeX, PMX and ABC files, read and record from a MIDI keyboard, handle manually entered notation, complex multistaff layouts and lyrics' and is an app in the Audio & Music category. There are more than 25 alternatives to NoteEdit for a variety of platforms, including Windows, Mac, Linux, BSD and iPad. The best alternative is MuseScore, which is both free and Open Source. Other great apps like NoteEdit are TuxGuitar (Free, Open Source), Guitar Pro (Paid), OpenMPT (Free, Open Source) and Avid Sibelius (Freemium).
GNU LilyPond is a computer program for music engraving. One of LilyPonds major goals is to produce scores that are engraved with traditional layout rules, reflecting the era when scores were engraved by hand.
Impro-Visor (short for “Improvisation Advisor”) is a music notation program designed to help jazz musicians compose and hear solos similar to ones that might be improvised. The objective is to improve understanding of solo construction and tune chord changes.
Power Tab Editor is a free tablature authoring tool created by Brad Larsen for Windows. It is used to create guitar, bass and ukulele tablature scores, among many others. The current version uses the *.ptb file format.
Finale is proprietary scorewriting software developed by MakeMusic, Inc. It displays music primarily in music notation and allows for multiple tracks and very specific tweaking of instrument sounds for each track.