Feature suggestion: Play music straight from library instead of only from playlist

[GaelicGabe]

I'd like to be able to play music straight from the library in addition to playing it from the playlist. The reasons I'd like to do this are that

1. When creating playlists that I will later save I like to try out different music too see if it fits the theme of my playlist, it's a bother to add every song I want to test out to the playlist, listen to it, and then hope I remember to remove it if it doesn't fit.
2. It's generally quicker to just move around in the library and click on random songs to listen rather than also adding them to the playlist

Unless there are any reasons I shouldn't start working on this I'll fork and work on this when I have time. Let me know!

[tramhao]

Sorry for not being able to reply to you in time. It's a good idea to me and thanks!