PS. I really think finding a piano & playing all the white or all the black keys would be easier. Jumping the gaps between the sets of black keys, omits the semi-tones.

Pentatonic all black
Pi 1 (begins on the 1st of the 3 black keys together, f#)
Pi 2 (begins on the 1st of the 2 black keys together, c#)

Diatonic, all white
Ionian-starts on C (white before the 2 black)
Mixolydian-starts on G
Dorian-starts on D (white between the 2 black)
Aeolian-starts on A
Phrygian-starts on E (white after the 2 black)