merging two video clips together + sync-ing? (with examples!)

[arthritis]

hello! hope you guys can help a newbie to video editing out.

anyway, to the point. i want to merge several recordings of myself playing the piano together, how am i able to do it? i'm aiming for something like this end product, http://www.youtube.com/watch?v=KsUAxG6c3Ws

sound has to be synced, while switching video portions.

can you guys direct me / teach me how?

i'd be using my digital camera to film it down, not too concerned with the quality at the moment. just would like to figure how i'm able to do it.

[arthritis]

bumps! ^^

[Baldrick]

Most advanced/nle editors can do that like from windows movie maker to vegas or final cut pro, https://www.videohelp.com/tools/sections/video-editors-advanced . You can then see the video and audio as separate tracks and cut exactly to get it synced. I'm not sure what would be best for just this though.