Extract text from LY files
To convert your LY file to another format, you need GNU LilyPond or other Text software.
To convert other file formats to the "Music Engraving Script" file type, you need software like GNU LilyPond or a similar tool.
A .LY file is a text-based source code file used by GNU LilyPond to generate high-quality sheet music. Think of it as the "HTML of music notation": it describes notes, rhythms, dynamics, and layout instructions using a specific programming syntax rather than storing visual graphics or audio data directly.
Because .LY files are essentially scripts, they present significant friction for casual users: you cannot simply double-click them to hear music or view a score. They must be "compiled" or processed by the LilyPond engine to produce usable output. This workflow often requires command-line knowledge or a specialized editor like Frescobaldi, making the format inaccessible to standard media players or basic text editors.
To make the content usable, the most common workflow is converting the source code into a final format. For printing and reading sheet music, converting to PDF is the standard. If you need to verify the audio, the file should be compiled to MIDI. For musicians wanting to edit the score in visual software like MuseScore or Finale, converting the logic to MusicXML is the only reliable bridge. Converting .LY files ensures you can share the music with performers who do not have the engraving software installed.
Convert.Guru analyzes your LY file, detects the exact format, and lets you read the text inside.
Users also converted LILY, TXT, LY ONLINE DEMO, MUSICXML, PDF, ILY, LYS, RTF, JPG, HTML, ZIP, XML and ACSM files.
If you want to convert LY file to LF, KM, AU, SF, LM, PC, MP3, WAV, AAC, FLAC, OGG or WMA, you can use GNU LilyPond or similar software from the "Music Notation Source Code" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to LY, try GNU LilyPond or another comparable tool in the "Music Notation Source Code" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LY converter.