Thanks for your response! I'll try to implement more variety and interest within the ostinato, especially at certain transition points. To respond to some other things, it is absolutely true that my instruments are probably not ordered correctly, so I will take a look at that. However, the reason there are duplicated staves for certain instruments are usually for panning purposes, so that the Musescore playback engine can interpret it correctly. Also, you brought to my attention something that I forgot to do, which was to rename one of the timpani's to Taiko Drums. In reality the middle timpani is actually a traditional Japanese percussion instruments, which I have simply forgot to label correctly, and the bottom-most must have been incorrectly duplicated, sorry for that. I was also a bit aware of the issue with the Timpani range. I believe that a 32" timpani could produce all these tones, but, as you pointed out, the results might not be as expected. Thanks again!