The length of each of the eight loops is a prime number of beats, starting at 2.
1 was skipped because of the number of overlaps with the other loops.

Sounds used are public domain from freesound.org

Dry stems are included along with the single-loop seeds.

Also included is a bonus version with ping-ponging loops and a slow vibrato (made with iZotope Vinyl).
Bonus version is not recommended with the use of heavy machinery :)