I bought it specifically for musical where I had to play drumset and percussion. Some of the percussion was acoustic but the most of it (timpani, bell tree, mark tree, castanets, etc) were electronic using a midi keyboard and MainStage software. I had a hard time switching channels between the timpani and percussion which included the triangle and I kept missing cues where the triangle was really important and exposed. Long story short, being able to mount the triangle and not have to worry about switching from sticks to a triangle beater ensures that I played the triangle on time (and saved me from crazy looks from the MD 😂). The only issue with the Miller Machine so far is figuring out how far in and out to position the beater in order to play the right dynamic. There were even a few times where I was supposed to play at a piano or mezzo piano level and in trying to not hit it too hard, it wasn’t quiet enough for the beater to contact the triangle. I’m sure I’ll figure that out over time with more use.