In the electronic music scene, "siren" and "acid" often cross paths as descriptors for specific sounds or tracks:

: Certain high-end emergency sirens, such as the Federal Signal Q2B model , feature identification plates made of acid-etched aluminum . This process uses corrosive acids to create raised lettering and durable designs on the metal.

: A common chemical used as a chlorine stabilizer in swimming pools to protect it from UV rays.