Opening a LY File

The LY file type is primarily associated with LilyPond.

LY	File extension: LY
	File type:	text file

What is a LY file?

LY files mostly belong to LilyPond.

LY files are used by the LilyPond music engraving system. They are plain text files that contain a specialized markup language to describe musical scores.
When processed by LilyPond, the file is transformed into printed sheet music and may also generate MIDI output.

Usage details include:

Defining musical scores through text commands.

Generating high-quality engravings suitable for professional printing.

Integrating with version control due to its plain text format.

FilExt.com note: For more specialized information, refer to the official LilyPond website.

How to open LY files

You need a suitable software like LilyPond to open a LY file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your LY file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LY file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LY Text Viewer

Choose your .ly file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert LY files:

LilyPond
See the previous paragraphs to learn more about the main application. LY files are often referred to as LilyPond simple text files because this type of file is primarily created or used by this software.
GNU LilyPond
Sheetmusic editor file.

Technical Data for LY File Extension

File classification:

Simple text file

Related files:

ly, ily, midi, musicxml, abc, ly1, pdf

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: LilyPond
EXEFile: C:\cygwin\bin\bash.exe --login -c '/usr/bin/lily-wins %1'

ProgramID: ZAMailSafe
EXEFile: %ProgramFiles%\Zone Labs\ZoneAlarm\zlclient.exe -warning %1

ProgramID: LilyPond
EXEFile: %ProgramFiles%\LilyPond\usr\bin\lilypad.exe

a ly text file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with LY files

Associate the LY file extension with the correct application.
Update your software that should actually open text files. Because only the current version supports the latest LY file format. Search, therefore, e.g. on the manufacturer website after an available LilyPond update.
To make sure that your LY file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .LY file online - secure, fast, and no downloads needed.