More sophisticated editor
Right now the chord editor is fine for basic songs, but anything slightly complicated and it's impossible to note down the song accurately. I'd like to see most or all of these things implemented in the future to make Chordify that much more accurate:
• The bars are sometimes off, and the ability to change timings with, say, a slider/buttons with millisecond increments, would fix this.
• Some videos have pauses, silent intros/endings, so the ability to trim/cut them would be great. Also to skip/cut sections in the middle of a song if theres a bit of not-music there would be cool.
• More time signatures! The normal ones like 2/4, 3/8, 5/4 and 12/8 have to be added, but more unusual ones that suit other music genres could be typed in by the user.
• We are waiting for more chords to come to the editor! Why aren't all chords manually accessible? At least the option to type them in in the meantime if it takes that long to add some more...
Now, I don't suggest that you develop Chordify into a music notation editor (although that would be pretty sweet! ;) ) but at the moment it's lacking some seriously basic functionality. Just my two cents after transcribing one song, though! :)