I play with classical (genre) and pop (my definition is anything non-classical, so rock, rap, ethnic, jazz, etc.). I like taking say a classical line or form and setting it to rock instrumentation and/or vice-versa. Since the music is 'experimental' in it's scope I don't name my pieces, I merely use the key and tempo to differentiate.
A Major, 135 bpm
A classical melody (think Haydn) that breaks way into a driving-rock piece.
A Major, 70 bpm
Technically the style would be considered a slow march, but it's predominantly 'pop' and I've been told it has a 'Beatles' as well as 'Pink Floyd' sound.
Db Major, 140 bpm
Standard pop form ((Verse/Chorus * 2) + bridge + chorus). It's a play with 'cluster chords' so it's got some crunch and 'irony', and sounds like it came right out of a kid's cartoon.
E Major, 55 bpm
Playing with a dubstep synth and late Romanticism brass choir (Respighi, Mahler, Sibelius).
Enjoy!