I found online piano which allows you to play and write sequences.
Website: http://www.buttonbass.com/PlayerPiano.html
This editor supports copy/paste so you don't need to write it manually
So I was bored and spent entire night on making these work on piano player(based on googled sheets, but edited):
Parasprite Polka:
r rr re w r y kkk k k j j k j h g h lq l j j k jh g h jk h k k jk jh j l q l lqw ewqkl lqlkjhg h j k l wr w r w q wr w r q l l k j h j g h j k l wr w r w q wr w r q k l k j h j g ghwjhgg j j k j h g h lq l j j k jh g h jk h k k jk jh j l q l lqw ewqkl lqlkjhg h j k l j j k j h g h lq l j j k jh g h jk h k k jk jh j l q l lqw ewqkl lqlkjhg h j k l wr w r w q wr w r q l l k j h j g h j k l wr w r w q wr w r q k l k j h j g ghwjhgg
Nyan Cat:
jkl e jklertrer e jklertrte u i tt eree e r t trtrtyiuiuiu yu tt eree e rt trtrtreeee e u i tt eree e r t trtrtyiuiuiu yu tt eree e rt trtrtreeee eekle klertrtrtr eeklerytree ee kle klertrtrtr ee klerytree eekle klertrtrtr eeklerytree eekleklertrtrtreeklertytye
Would be epic to see more like this, if anyone here is creative post your mlp songs-based sequences.
Official sequences on their website:
http://www.buttonbass.com/SongList.html
Obligatory My Little Pony intro: (100 beat)
t u t r u e r e w l q w e r e we r e tttt tr e t r e we r e ertu y t r et r eee t ui u errr r r tt r er t eyuui u e r r r u i uu qw e we r e ertu y t r e t e
Some random thing that can loop well: (300 beat)
[id]jkjd[oj][pk][oj][us]jkjs[tj][yk][uj][ya]gjga[eg][tj][eg][us]hlhs[th][yl][uh][id]jkjd[oj][pk][oj][us]jkjs[tj][yk][uj][ya]gjga[eg][tj][eg][us]hlhs[th][yl][uh]
% %$L $ $LK @K@K@KL$% $ % % %$L $ $LK @K@KLK@ @ H @
Just a little tune from CraftedMovie's blooper music X3