In default music player, clicking a song plays it, and press and hold on it gives some options, but none of them adds it to now playing queue. So, I have not been able to figure out how to create a quick playlist on the fly with songs from different albums without having to save it first. Is it possible at all in default music player? Other players in the market allow you to queue, but they won't show a music player widget on default lock screen, which is something I really dig and use a lot.