Waltz To Swing

Jazz musicians often play the theme of a ¾ song in ¾ and switch to 4/4 (swing) for improvisation. This is achieved by adding a beat to the first beat of each measure.

This plugin does just that.

It's written for MU3.6 but may work in MU4. I made changes recommended by Jojo Schmitz.

To use: open your file in 3/4. Then open an empty file in 4/4. This has to be right next to the 3/4 file (The plugin uses cmd("next-score"). Go back to the first file and run the plugin.

Attached what it does to "Someday My prince Will Come"