perfect harmony

ph#1http://www.youtube.com/watch?v=ussdvB5R67A
ph#2http://www.youtube.com/watch?v=KiAyKakjoJ8
PH#3http://www.youtube.com/watch?v=0zBNySfb_TE
PH#4http://www.youtube.com/watch?v=VlM454ZBwZo
PH#5http://www.youtube.com/watch?v=d5hBXXH4mdc
PH#6http://www.youtube.com/watch?v=oTXFyJtcSgY
PH#7http://www.youtube.com/watch?v=jcP6MWylBlE