Keeping Up Appearances is Doyle's final album, and will be released under his Basic Plumbing name. It'll be his second solo album, having released his debut under the name Boys Forever in 2016.
The former Veronica Falls member was preparing to release a new album before he died in March 2018.
Helen Skinner, who toured as part of the Boys Forever live band, recorded Keeping Up Appearances with Doyle in LA back in 2017. The album is produced by Boys Forever producer Andrew Schubert.