Free noteedit software for linux

Noteedit is an editor for music notation that supports an unlimited number of staffs and up to 9 voices per staff.
You can use it to create sheets of notes. With Noteedit you can import and export into many formats like midi, musicxml and lilypond.
Main features:
- Insertion/deletion/modification of notes, rests (and multirests), ties/slurs, stem/beam control, instrument changes, repeats, clef/time/key/volume/tempo and all other classical music notation signatures.
- Chords markings (based on KGuitar project)
- Dynamic expression markings ((de)crescendo, octaviation, arpeggio, fermata, trills, grace notes etc.).
- Fixed expression markings (staccato, sforzato, portato, strong pizzicato, sforzando etc.).
- Multiple voices per staff (polyphony).
- Drum notes (including drum and bass drum clef).
- Flexible UI based on Qt/KDE. Supports zoom, multiple windows, many keyboard shortcuts, Konqueror embedding and other candies.
- Playback and other MIDI operations (reading and recording from MIDI keyboard) are done using TSE3 library. Each staff can have its own channel, own intsrument and own MIDI settings (reverbation, chorus). Currently played element is highlighted!
- Support for lyrics.
- Basic score layout operations (setting brackets, braces, score title, composer, copyright etc.).
- Many useful tools like automatic placment of bars, automatic placement of beams, transposition, copying&pasting of elements, optimization and resetting of accidentals, MIDI importing (or recording from MIDI keyboard) filters etc.
- Exports MIDI (using TSE3 library), MusicXML, ABC Music, PMX, MusiXTeX and LilyPond.
- Imports MIDI and MusicXML.
- The NoteEdit fileformat is similar to the format of the music publication program (MUP). Its a plaintext format, with a simple syntax for describing the music, so computer geeks can edit it by hand if they want to:).
- NoteEdit is translated into the following languages: German, Spanish, French, Hungarian, Italian, Russian, Slovak, Slovene and Swedish. It supports UTF-8 encodings for lyrics, score title, composer, copyright and other document strings.
Enhancements:
Release Candidate of NoteEdit 2.8.1.
The beta version can no longer be downloaded.
Many bugfixes and improvements to the beta version (see ChangeLog for details).

LilyPond is an automated engraving system. LilyPond formats music beautifully and automatically and has a friendly syntax for its input files. It is Free Software (?open source?).
Main features:
Music language input.
- The input is done in the form of a textual music language.
- Entry may be done with the text editor of your choice, and using the national language of your choice.
- The ASCII input language can integrate with TeX, HTML and Texinfo, thus allowing musicological treatises to be written from a single source.
- The music and its layout are strictly separated, so score and parts (possibly in different styles and keys) and scores can be generated from the same source, and changes always take effect in both places.
- The output can be improved by upgrading the program.
- Pieces can be printed in different (typographical) house styles, or according to different notational conventions.
Automated high-quality formatting.
- Automatic spacing, line breaking and page breaking.
- Handling of polyphonic collisions for notes, dots, and rests.
- Automatic placement of accidentals, beams, slurs.
- Users dont need typographical expertise to produce good notation.
- No user interaction necessary during running, Running the program can be automated, which is convenient for mass converting databases of digitized music, and printing algorithmic compositions.
- The Feta font has been tailored especially for LilyPond, and was designed carefully mimicking the finest hand-engraved scores. It is available as a scalable font, but also as a Metafont.
- Support for many notation constructs.
Special notation
- Chord names.
- Drum notation.
- Figured bass.
- Grace notes.
- Fret diagrams.
- Basic tablature notation.
- Cluster notation and rhythmic grouping signs.
- Tremolos, both for single notes and chords.
- Tuplets in arbitrary ratios.
- Polymetric notation.
- Mensural notation.
- Automatic cue-notes,.
- Automatic part combining for orchestral scores.
- Quarter tone accidentals.
- Ambituses.
- Metronome markings.
- Harmonics.
- Measure repeats (?Percent style?).
- EasyNotation note heads.
- Blanking arbitrary notation elements.
- Arpeggio signs.
- Ottava brackets.
- Nested analysis brackets.
- Piano pedals.
- Starting and stopping staves anywhere
- System separators
Robust design
- Lyrics in any language.
- Output in PostScript, PDF, PNG, MIDI, SVG.
- No limits on the number of staves, voices, measures, lengths of texts, etc.
- Extensible with built-in LISP interpreter.
Excellent support
- Runs on Unix, including MacOS X and Linux, and Windows.
- Active user community.
- Extensive documentation.
- Supported by many other programs,
- RoseGarden NoteEdit and PowerTab and Denemo. Imports ABC, ETF and MIDI.