Pi – Songs at YouTube

I’ve posted on Pi before, here about pi-day in Second Life, and here, a year later, and both with pi-day (March 14th, written as 3/14) as the immediate cause. I don’t like to repeat myself, so the last years I’ve celebrated pi-day on my own, watching some pi-video’s at youtube. However, this post about pi is without reason: pi-day is already over and pi-approximation day (22/7) is still far away, but I found some interesting video’s I would like to share.
It is difficult to memorize the digits (my personal record now is 30), but a song will help you, here is a video:

Lyrics:

3.
1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 4811174502 8410270193 8521105559 6446229489 5493038196 4428810975 6659334461 2847564823 3786783165 2712019091 4564856692 3460348610 4543266482 1339360726 0249141273 7245870066 0631558817 4881520920 9628292540 9171536436 7892590360 0113305305 4882046652 1384146951 9415116094 3305727036 5759591953 0921861173 8193261179 3105118548 07

This one is also interesting, based on “Don McLean’s “American Pie”:

And here: the Pi(ano) – song: 3.1415 92653 58979 32384 62643 38327 transformed into a piano tune, following the algorhythm: 1 = c, 2 = d etc.