Hello PDF filed this day ...the NOTATION software ...finds a lot of chords by analyzing a vertical displacement in all the staves in parallel. So you have to sort out and keep only one or two per measure. Yoyodu77 Here is the Mid kar reference https://framadrop.org/r/6UxausP6qt#UVpnraowflqWkyqxp/YmwUz3RgGKtyLEJiNJdM6eybs=