Using the numbers on your stylophone try and follow this tune.
┌──┐
│• 1│•2 •3
└──┘
1-2-3-1>>1-2-3-1-5>>1-2-3-1>>1-2-3-1-5-5>>1-2-3-1~>>

------------------------------

Key
This is the key to my music:

>:wait for 1 second.
>>:wait for 2 seconds and so on.
~>:keep that note going for 1 second.
~>>:keep that note going for 2 seconds and so on.
-:to space out the notes.

And if you want to play easy piano these are the notes:
1:A 1.5:A#/Bb
2:B 3.5:C#/Db
3:C 4.5:D#/Eb
4:D 6.5:F#/Gb
5:E 7.5:G#/Ab
6:F 8.5:A#/Bb
7:G 10.5:C#/Db
8:A 11.5:D#/Eb
9:B
10:C
11:D
12:E

http://stylophone-music.blogspot.com/