QZB and Critical Music present “Surface Tension / Polymer”, a 2-track drum & bass release out now. Spanning 87–130 BPM across its 2 tracks, this release gives DJs flexible tempo options for different set moments.

Surface Tension / Polymer on Critical Music
Download ‘Surface Tension / Polymer’ in MP3, FLAC, and AIFF Formats
Release Tracklist
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QZB – Surface Tension Original Mix
Drum & Bass | 130 BPM | G Minor | 3:07
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QZB – Polymer Original Mix
Drum & Bass | 87 BPM | A Minor | 3:51
Harmonic Mixing in G minor & A minor – 87–130 BPM
Mixing Reference87–130 BPM
No Harmonic Overlap
Non-harmonic transitions only.
Contributing Artists – Critical Music Roster
QZB is a Swiss drum and bass duo consisting of Benjamin Ramsauer and Thomas Koubik. The group produces house, afro house, and deep house tracks for Critical Music and Flexout Audio, with releases spanning from 2021 to 2025.







