Bohemian Rhapsody is not a piece for beginners. For a start, the Key Signature is Bb (B flat - 2 flats), it then changes to A for the opera section and then to Eb later in the Opera Section.
There are also time signature changes from 4:4 time to 2:4 (briefly) and later to 6:8 time.
Finally you also have the crossover of the hands for the Bb, Gm, Cm section at the start of the song making it extra difficult.
If you are looking for some suggestions for easy songs for learning piano / keyboards the following might be useful ;
* Flash ( Chords Used : Am, G, F, C, A, Dm, Dmaj, E)
* I Want to Break Free (Chords Used : A, B, E, C#, F#sus4, F#)
* A Kind of Magic (Chords Used : A, B(9), Dmaj7, F#m7, D, E)
All fairly easy tempo and key wise.
If you are still interested in the Bohemian Rhapsody chords, I have some chords and information on my site which might explain it better : link
Best of Luck !