OnSong 1.81 was released on April 30, 2011.
- Fixed a crash condition when choosing topics in the help screen.
- Fixed a crash condition when exporting PDF files.
- Fixed a Dropbox error when exporting PDF files.
- Fixed a crash condition when change display settings.
- Fixed an issue with key detection that was causing transposition issues.
- Fixed an issue with autoscroll in stage monitor mode.
- Changed the default method for detecting key back to first chord to resolve note count calculation problems.