It looks lovely, and I'll probably grab it (especially at that price). However, as an Etude for iPhone user, I have to say - you really need to get some more scores into the store. At the moment, months after launch, you still only have material from 21 composers. Everyone I've shown it to loves it, but it's a really hard sell with such a limited selection. I've no problem with paying for sheet music, and I'd probably pay more for the convenience of this format - it just needs to be there!
I can see how this could be convincingly better than the analogue equivalent, and worth buying an iPad for (if I still had a piano):
* Is page-turning easy? With paper you have to carefully dog-ear the sheet music so that you can grab the corner and turn the page without breaking flow. A simple one-finger swipe or tap would be less disruptive to playing.
* On-demand sheet music purchase is a great idea, if the catalogue is comprehensive enough. It would be great to be able to go from hearing a great piece on the radio to having the score in front of you in minutes.
I assume you need music to be converted so that you can support the synthesiser and simulated keyboard. To bootstrap, can you take existing sheet music unconverted (just scanned, say) and display it without those features? TBH I'm not sure I see the utility of watching the keypresses anyway (maybe because I haven't tried it).
* As well as hearing a synthesised version of the piece, what about a link from the score to world-renowned recordings, to stream or purchase? I'd often struggle to learn some passages that seemed boring or repetitive, but to hear the same passage played with fluency and passion would be very motivating.
Metacomment: I find it amusing that I got more upvotes for providing attribution for a refutation of my own minor criticism of Etude than for my original comment actually discussing Etude.
I guess I'm being rewarded for admitting and embracing my own wrongness!
Indeed the first thing that I tried was to pinch-spread across a section in hopes that that would turn the width I had specified into a looped playback region.
Awesome work on both the iPhone and iPad version :) I've been grumbling at everyone and their mother telling me about Etude because it's not an app for me, but it's certainly one I will and have recommended to friends that want to learn how to play a real piano. (And it's not for me only because I may suck, but I've been banging away at a piano for over ten years and can sight read most of the pieces in Etude in my sleep. Understandably I am not the audience for this app, a PDF reader with metronome is more suited to my needs... :) )
The price is a steal. Sure, Xelements is cool, but this completely is reason alone to buy the iPad. Congrats and hope that some day soon orchestras could have this.
Did anyone else notice how the blue-ish marker lags behind the actual position of the piece during playback? Having that in a demo is kind of ridiculous...