C# - G# - B - F#
aka
Db - Ab - Cb - Gb
as for the tapping sound sounds like the different sounds you get from a conga or bongo drum and its lower partner: open, slap, muted
C# - C#-E#-G#
G# - G#-B#-D#
B - B-D#-F#
F# - F#-A#-C#
aka
Db - Db-F-Ab
Ab - Ab-C-Eb
Cb - Cb-Eb-Gb
Gb - Gb-Bb-Db
C# = Db
E# = F
G# = Ab
B# = C
D# = Eb
F# = Gb
A# = Bb
B = Cb