Contribute correction: MIDI Tracker (unreleased)

  _  __     ___                ______  
 | |/ //   / _ \\      ___    /_   _// 
 | ' //   | / \ ||    /   ||   -| ||-  
 | . \\   | \_/ ||   | [] ||   _| ||_  
 |_|\_\\   \___//     \__ ||  /_____// 
 `-` --`   `---`       -|_||  `-----`  
                        `-`