Search Reverb's Price Guide model catalog

Searches Reverb's Price Guide (reverb.com/price-guide) for gear models by free-text brand/model query (e.g. "fender stratocaster"). Each result's slug is the value reverb-price-guide's own slug parameter accepts. query is full-text relevance search, not an exact match -- unlike reverb-search's own query, a nonsensical query is not guaranteed to return an empty result; the upstream can fall back to loosely related or generically popular models instead, so a low result count should be treated cautiously rather than read as "no real matches."