Hedwig's theme is a song that was originally composed by John Williams. The song was supposedly dedicated to Harry's owl named 'Hedwig' but the song was expanded and became the official soundtrack theme song for all of the Harry Potter movies.
The original song was played with a glockenspiel but now wizarding fans from all over the world enjoy playing covers of this classic on the likes of piano, guitar, ukulele and below is the notes so that you can play it on kalimba too.
E A C B A E D B A C B
G B E E A C B A E G
F# F C# F E E E C A C