Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100150

MacLeod's description:

Genre: Modern
Length: 0:38
Instruments: Piano

Atonal, sure... but almost in the key of C... or C-sharp. No traditional harmonics, fast paced - but measured. The forth of a series. 009
ISRC: US-UAN-11-00150
Unnerving, Aggressive 2006