SquareDesk helps square dance callers manage their music and lyrics.  It is both a singing call lyrics editor, and a synchronized lyrics/MP3 player.  Version 1.0 will be available soon, for PC and Mac OS X, with later support for iOS and Android tablets.

SquareDesk V1.0 features:

• independent tempo and pitch control
• 3-band EQ (bass, midrange, treble controls)
• easy-to-use MP3 lyrics editor (and a separate database is not required for lyrics storage)
• dynamic highlighting of individual lines and sections for singing calls — you’ll always know which verse is playing
• keyboard shortcuts for playback control
• designed to work well with cloud storage, so your music and lyrics are automatically available to all your devices
• it’s free!