wx12Ton helps one to work with music involving twelve-note series. In particular, it displays the 48 forms of a twelve-note series, and tests series for tonal phrases. In addition, wx12Ton allows the user to list the complete set of all twelve-note series which satisfy certain criteria.
MuseScore lets you notate and compose music easily with your keyboard, your mouse, or a MIDI keyboard. You can print beautifully engraved sheet music or export it as PDF or PNG. You can play your score, transpose it, and save it as audio or MIDI file. MuseScore also supports MusicXML to let you share your composition with other scorewriters. MuseScore is often advertised as a cost effective alternative for Sibelius and Finale.
Jaikoz is a powerful tag editor that allows you to organize, edit, and correct thousands of audio tags with ease. Jaikoz has powerful automation features. Jaikoz uses MusicBrainz and MusicIP, online databases of over 5 million songs, which can match your songs automtically based on the actual music as well as the metadata. Jaikoz uses a convenient spreadsheet view to allow you to edit information very quickly and provides many autoformatting tasks which do most of the work for you.
Kid3 tagger can edit the ID3v1 tags and all ID3v2 frames in MP3 files and the tags in Ogg/Vorbis and FLAC files in an efficient way. It is easy to convert between ID3v1 and ID3v2, set the tags of multiple files to the same values and generate the tags from the file name or vice versa. Import is possible from freedb.org, MusicBrainz, and other sources of track data.
Pinky-Tagger is a program for editing and mass tagging music file tags. Pinky-Tagger uses the MusicBrainz service to find tags automatically. To do so, Pinky-Tagger generates fingerprints (TRM-Hashes) of your files and compares them with the data from a Musicbrainz server. In addition to tagging single files, Pinky-Tagger allows you to tag complete albums. This works even if the MusicBrainz server has no valid results for some files.