Trygve,

If the song has a melody, and you didn't create the melody, then you are infringing copyright (just as you suspected). In the same way, if you use the Melodist to create a melody, you become copyright owner of that melody. (I've often used the Melodist to give me a starting place with creating a song. It's a fantastic tool.)

While chord progressions and genre-based standard accompaniment patterns (like waltz, rock, blues, swing, rhumba, etc.) are not copyrightable, melody and lyric are copyrightable. Song-specific signature musical breaks and fills also have potential to attract copyright.

Hope this helps,
Noel


MY SONGS...
Audiophile BIAB 2025