Cluin,

Those chords may work well on a guitar, but I play currently mainly the piano accordion, and some of those chord jumps are far beyond where I can handle yet - the Major & Minor chords for the same keynote are together, and the relative minors are quite a stretch apart...

D Maj to F#Min --> across 4 rows to the right & up one
then to G Maj back 5 rows & down one (G is to the left of D)... :-)

Looks interesting though, and the more you practise the hard stuff, the better you get at it... fitting in those Maj/Min jumps is something I should practise more... :-)

The version I do uses Keyboard wobble to get a vibrato effect...

The three most important words for musicans...

Practice, Practice, Practice... :-)

Robin