[ ] DuckDuckGo bangs

The search engine DuckDuckGo has a thing called bangs, where you can type an exclamation mark followed by a short code of numbers/letters, and then the search typed beside it goes directly to the website for that code. Some music websites are integrated, eg.:

!rym for RateYourMusic: https://duckduckgo.com/?q=!rym%20bandtoband
!discogs for Discogs: https://duckduckgo.com/?q=!discogs%20bandtoband
!mb for MusicBrainz: https://duckduckgo.com/?q=!mb%20anthrax
!mab for Encyclopaedia Metallum: https://duckduckgo.com/?q=!mab%20anthrax

The code !b2b isn't taken yet so it'd be great to try and get it. Problem is the BandToBand search doesn't yet work with a query string. Would it be possible to get something like the following working, even if just for the specific purpose?

https://bandtoband.com/search?q=the%20bandtoband%20band

Speaking of search, it would be great to have the Firefox search-engine extension working again. (I can't find the old forum posts about that.)