D-Maj F#-Dom7 G-Maj G#-dim b-min / f# F#-Dom7 G Maj G#-dim7 D-Maj+6 / A g#-dim7 A-Maj+4 A-Dom7 D-Maj
Just after turning on the recording device, I sat down at the piano and played these 18 seconds of music. A basic harmonic analysis could be as follows, containing nine separate harmonies: