Key of C

The major scale: DO, RE, MI, FA, SO, LA, TI, DO

The relative minor scale: LA, TI, DO, RE, MI, FA, SO, LA

Arpeggios (triads):

I-chord: DO, MI, SO

IIm-chord: RE, FA, LA

IIIm-chord: MI, SO, TI

IV-chord: FA, LA, DO

V-chord: SO, TI, RE

VIm-chord: LA, DO, MI

VIImb5-chord: TI, RE, FA

Arpeggios (7th-chords):

The Imaj7-chord: DO, MI, SO, TI

The IIm7-chord: RE, FA, LA, DO

The IIIm7-chord: MI, SO, TI, RE

The IVmaj7-chord: FA, LA, DO, MI

The V7-chord: SO, TI, RE, FA

The VIm7-chord: LA, DO, MI, SO

The VIIm7b5-chord: TI, RE, FA, LA

The „Stairs“…

#1: DO, RE, DO, MI, DO, FA, DO, SO, DO, LA, DO, TI, DO, DO

#2: DO, DO, DO, TI, DO, LA, DO, SO, DO, FA, DO, MI, DO, RE, DO, DO

#3: DO, DO, RE, DO, MI, DO, FA, DO, SO, DO, LA, DO, TI, DO

#4: DO, TI, DO, LA, DO, SO, DO, FA, DO, MI, DO, RE, DO, DO