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MuseScore is a free music notation and composition software available for Linux, Windows and Mac.

Sibelius is the world’s best-selling music notation software, trusted by top composers, publishers, and students alike. With Sibelius 7.5, you can express, accelerate, and promote your creativity in more ways than ever before, enabling you to deliver beautiful, professional scores faster and share audio and video versions of your work—with stunningly realistic musical phrasing—to make your talent stand out from the crowd. It’s the fastest, smartest, easiest way to write music for live performance, film and television, media entertainment, or in the classroom. »

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. It uses a simple text notation for music input, which LilyPond interprets and processes in a series of stages. In the final stage, music notation is output to PDF (via PostScript) or other graphical formats, such as SVG or PNG. LilyPond also has the facility to generate MIDI files that correspond to the music notation output. »

Anvil Studio is a free Windows 7/Vista/XP/2000/98 program designed for people who want to: -- record music with MIDI and Audio equipment, -- compose music for MIDI and Audio equipment, -- sequence music with MIDI equipment, or -- play with music using a computer and sound card.

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.

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. There are other, secondary, things it can do, such as improvise on its own. It has also been used for transcription. Because rhythm-section (e.g. piano, bass, drums) accompaniment is automatically generated from chords, Impro-Visor can be used as a play-along device. Now having a wider array of accompaniment styles, its use is not limited to jazz. »

iOS and macOS notation and tablature editor with MIDI and MusicXML files support and chromatic scales analyze of the score.

NtEd is a GTK+ score editor. It intends to be really WYSIWYG: what you see on the screen is exactly what you get on printer output. It supports up to 4 voices per staff, drum notes, 5 lyrics lines, N-Tuplets, context changes, repeats with alternatives, configurable music instruments per staff, MIDI / MusicXML import, PS / PDF / SVG / PNG / Lilypond / MIDI export. Scores can be played through the ALSA sequencer.

Canorus is a free cross-platform music score editor. It supports an unlimited number and length of staffs, polyphony, a MIDI playback of notes, chord markings, lyrics, import/export filters to formats like MIDI, MusicXML, ABC Music, MusiXTeX and LilyPond.

NoteWorthy Composer is a graphical score editor intended for the creation of sheet music, but it can also import and export MIDI and Karaoke files and can export graphical WMFs. The user interface works either from the keyboard or the mouse. Visual results are immediate, and audible results can be heard at any time. Notes can also be entered by playing on a MIDI device, when configured. In version 2, the notes can be heard as they are entered. A feature of the user interface is that notation is displayed during editing. Each staff proceeds linearly from left to right, without being wrapped to the screen. Staff systems are visually broken to fit margins during page layout, allowing many possibilities at "print time", so solo instrument or full conductor can be produced with the same file. Many users prefer this editor layout over the so-called WYSIWYG editors because slowdowns in note entry, as the composition becomes larger, are much less dramatic than in WYSIWYG editors. Print preview is available for adjustments to page layout. »

Dispatch re-typing of sheet music to a nuisance of the past! Let capella-scan transform your sheet music quickly into a ringing score that is ready for editing and printing. capella-scan has put an end to the laborious task of typing out notes. At last, there is now a way of transposing printed notes and creating part extraction from a printed score without having to type out sheet music note-for-note. capella-scan has been developed to recognize notes including bar lines, accidentals, clefs etc. as well as text, and to transform sheet music into capella files. The entire process takes only a few seconds. »

Harmony Assistant is an unbeatable software for computer-assisted music composition and editing.Its harmonizing capabilities enable the composer to build quickly and efficiently tunes that include accompaniment, multiple instruments and drum patterns

Band-in-a-Box is so easy to use! Just type in the chords for any song using standard chord symbols (like C, Fm7, or C13b9), choose the style you'd like, and Band-in-a-Box does the rest... Band-in-a-Box automatically generates a complete professional-quality arrangement of piano, bass, drums, guitar, and strings or horns.

Melody Assistant is dedicated to music writing, printing and rendering.Easy to use, Melody Assistant offers a user-friendly interface and powerful capabilities.Now used by a very active community of thousands of people, it has become a favored tool for creating music.

DGuitar is a Guitar Pro (*.GP4,*.GP3,GTP) viewer/player that works on Windows, Mac, Linux, BSD, Solaris, and any other operating system that has Java Runtime Environment 1.4 or later installed.