Hi Yavuz I wrote: > Of course Logic cannot decide for you which notes to consider 'real top > lines' - it just logically selects the highest of any stack [read: chord]. > BUT.... > - you could make a subdivision of your sequence and proces only the parts > where you consider the topline useful; > - or you could copy the hybrid topline to a different track anyway, and copy > the unwanted parts back to the first track > - or you could work your way from bottom to top by subtracting bottomlines > one by one, leaving the last notes as [the best approach of] your topline... Oops - I dumbly forgot about the voice separation tool! - Assign a polyphonic score style to your sequence and with the sep.tool separate the line you want from the lower notes. Now demix by channel. Depending on the complexity of your sequence those methods may take a while though... Bart