B ... convert them to what?
I play a kn6000 ... One method I have used when trying to learn a melody line by 'ear' is to "Easy Record' and Save the chord changes and rhythm while NOT recording the Rt1 track, and then keep playing it back while trying to 'pick out' the melody using Rt 1 ... You can also slow the tempo down to help you through this ...

If you want to 'convert' or 'transpose' the chords shown on 'chordie.com to a different key signature, on the 'chordie.com' site "All My Life's A Circle" is shown in the key of 'G' ... If you want to transpose to the key of 'F' there is a 'transpose' box on the right hand side of the page ... click on it and select -2 semitones ... if you want to transpose it to the key of 'C', select +5 semitones, etc. ...

Another method I learned a loooong time ago is to write down the scale of the key the song is written in and below it write down the scale of the key I want to transpose to ... i.e. if I want to transpose a song from 'G' to 'C' I would write down the following ...
G A B C D E F# G
C D E F G A B C
A 'B' in the key of 'G' becomes an 'E' in the key of 'C', an 'F#' becomes a B, and so on ...
Hope this helps ...