I do not typically leave reviews-less than a half dozen made in my lifetime across all platforms-so this review is a sign of how impressive and helpful this app truly is. Having the loops organized with each song like that is one of the many details that make using ASD intuitive and effective. Each loop only took seconds to create and are automatically organized under a disc looking icon linked to the song. Besides having quick and easy control of pitch and speed, the setting of focused sections of songs is very easy-I was setting focused loops on the fly the first night of practice using ASD. But that is a very small added cost for the time ASD saves when learning the song. I do pay for Apple Music, so I have to individually purchase those pieces I decide to accompany on my banjo. You do have to “own” your iTunes music that is imported, and they have to be downloaded to your device-Apple won’t let you work in other programs with their music otherwise. ASD proved to be “amazingly” intuitive, easy to organize what you’re learning, and completely bug free. Those others were difficult to effectively manage and really buggy. More than worth the price! Truly a game changer! I tried cheaper options and their interface looked more interesting, but those looks were deceiving. I haven't tried other similar apps (if they exist) but this one has been great to me, so am true blue all the way. That being said I will continue to use this app and hammer on the > 1 second button until this feature (hopefully) comes out. (Also would be great for jumping to the next movement in classical music). 5, 10, 15 seconds.) It would also be out of this world if you could develop place markers or tabs for points of difficulty that you could just jump to go practice. I would also love love love if you could either modify the small movements back & fwd or have more options available to do so (e.g. However, there is one thing I would really love if the developers would consider (which would make this a 5-star review) and that is a way to adjust speed percentages by + or - 1 with the tap of a +-1 button just like you can with moving forward or backward in seconds. I am violin teacher and I use and recommend this app a great deal.