I just Shazamed Mystery Track #1 and it implies it may be:
Russian Roulette – I Believe
Label: Highball Music
Catalog#: RTD 113.3753.0
Format: Vinyl, 12″, 33 ? RPM, Maxi-Single, Promo
Country: Germany
Released: 2000
Genre: Electronic
Style: Techno
Credits: Producer, Written-By – Isaiah Major
Notes: Written & produced courtesy of Kne’ Deep.
Published by Knee Deep Music / Dust Traxx.
licensed from Dust Traxx Inc. / Promo / N.E.W.S. (Belgium).
A2 is a Bonus track.
Rating: 3.9/5 (16 votes) Rate It
Submitted by: Miel
13 for sale in the Discogs Marketplace
Tracklisting:
A1 I Believe (MG Remix) (6:53)
Remix – MG*
A2 I Believe (Acapella) (2:16)
B1 I Believe (Original) (5:52)
B2 I Believe (I’m A Pussy Mix) (5:08
**it seems to tie in nicely to the ‘believe’ vocal/lyric on your audio sample**
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