Paste two drum-bottle URLs (or just their ?p= codes). Pick an operator. Hear the remix. The result is itself a sharable bottle URL — paste it anywhere, or remix it again with someone else's phrase.
Every drum-bottle URL contains a 4-voice × 16-cell grid as 64 bits of pattern. Genesis decodes both sources and applies a bitwise operator to produce a new 64-bit pattern. The result is a real, playable bottle — copy its URL and send it like any other phrase.
The operators:
⊕ XOR — cells where A and B differ. Rhythmic complement; the parts the two phrases disagree on.
∧ AND — cells both have. The shared groove; what A and B agree on.
∨ OR — cells either has. A denser remix; every hit from either phrase.
↔ INTERLEAVE — A on even cells, B on odd. A call-and-response feel within a single 16-step bar.
BPM is averaged from A and B (rounded to nearest even). If you want a different tempo, copy as a new bottle and re-record there with the BPM slider.
The /drum-genesis?a=…&b=…&op=… URL preserves the whole recipe, so a friend opening your genesis can see the inputs and remix differently. The "copy as new bottle" button strips the recipe and gives you a plain /drum-bottle URL — the polished output to send around.