FRANCESCO VINCI  many thanks for your kind words! :-)  
(Version 1.61)

FRANCESCO VINCI  when it starts, it is good, but, after some minutes, it becomes intolerably slow, almost still -WHY?  
(Version 1.8)

FRANCESCO VINCI  your suggestions were great. i think i followed them rightly, mrdrum is now better. it is much better, because it is faster and more responsive now, thanks to the redesigned interface.  
(Version 1.40)

FRANCESCO VINCI  Your critics are exact:

-unusual behaviour of buttons: i created these new buttons for mrdrum; i like them, but i think i could correct the "out then in" issue you noticed

-numeric instrument field: that is the less memory wasting way, but i think i can add a contextual menu for each field, with instrument names instead of numbers, good.

-numeric notes on bass track: of course, they will be changed to octave and notes  
(Version 1.30)

FRANCESCO VINCI  I have to apologize with all users.

Empty folders scan had a major bug.

In some cases, a folder containing other folders not empty was considered empty -a big mistake. This did not always happen so i didn't notice it in my tests, and only now, upon users feedback, i could discover and correct the code.

I think now MrClean do its job. No mistakes.

I tested many times in various disks and folders.

Anyway, please always check the log before deleting the trash after MrClean scan.  
(Version 1.4)