Mention the words “music” and “apps” and most people will think that you are talking about either those apps that let you play music on your device (like VLC player), apps that let you stream music on to your device (like Saavn) or still those that identify music that is playing in your vicinity (think Shazam).

But there is much more to the world of musical apps than these varieties. There are apps that serve up lyrics in perfect sync with the song being played, those that pick songs out for you based on your mood, and some that even convert your normal chit-chat into something that sounds right off a music chart. Here are six that just excel in going beyond the routine.