for guitar, bass and keytar i'm looking mainly for ones similar to how some of these following songs are not highly difficult ones like caprici di diablo

amberian dawn - dreamchaser (parts like the intro)
http://www.youtube.com/watch?v=Q0YBJy70Xg0

eths - adonai (the verse and to a lesser extent the chorus)
http://www.youtube.com/watch?v=Myx_aGN4bLw

eths - gravis venter (the intro)
http://www.youtube.com/watch?v=ICpw5iuSRFg

yogurt with sprinkles - version 2 (2nd half of the key solo when played as keytar is all HOPO)
http://www.youtube.com/watch?v=Hu-MzyK5ilw part i'm talking about starts at about 3:16