I've come back to Guild Wars 2 after a long time and I found out that a patch on nov 2018 messed with musical instruments. None of the songs I had recorded to use with autohotkey now play right. You can see the original complain here: https://en-forum.guildwars2.com/discussion/61706/musical-instrument-issues-since-nov-26-patch-merged
Playing instruments was one of the most fun things I've had during wait for world bosses, so I please ask you to look into it. Moderators answered on the thread that they would look into it and even closed the thread, but it has been 9 MONTHS and nothing was fixed, so I'll keep reporting it until it is fixed.