Bap passed away last November aged 54 after a short battle with cancer.
The release of Raving For Bap by The Raving Beauties marks the first anniversary of his death.
The five-track EP, featuring cover art by Kenny McKendry and sleeve notes from music journalist Stuart Bailie, will be available on limited edition 10in vinyl and on digital download.
All profits will go to Belfast's Marie Curie Hospice.
The record includes songs from Bap's solo career as well as his years as frontman for Energy Orchard and is being released on the Farm Music label.
The project is a collaboration between Brighton-based Belfast expat Brian Bell and Oxford/Sussex band The Dreaming Spires, with multi-instrumentalist Joe Bennett handling production duties.
Bap's sister Marian Bunton began fundraising for the Marie Curie Hospice in his memory at the beginning of 2017 by taking on the challenge of abstaining from alcohol for a whole year. Proceeds from Raving For Bap will be added to the £2,000-plus Marian has already collected, and further fundraisers are being planned for the new year.
She said: "I will be always grateful to the Marie Curie nurses in Belfast for the warmth and respect they showed my brother whilst in their care.
"The dedication of the nurses, doctors and staff can never be repaid.
"It's a privilege to join forces to raise funds for Marie Curie with The Raving Beauties and I love their take on Bap's music.
"Bap wants his music to live on and Raving For Bap will certainly help do that."
The musician's widow Brenda is delighted with the record.
"I'd like to say a big thanks to Brian and The Raving Beauties for making this tribute EP and for helping to raise funds for the Marie Curie Hospice," she said.
Mr Bell has been working on the tribute for the past year.
He explained: "They are all Bap's songs which we tried to reframe in a different way. There is a Sixties vibe and lots of guitar jingling and harmonies, but we hope we stayed faithful to the spirit of the songs and melodies."
- Stephanie Bell
To order the limited edition 10in vinyl version of 'Raving for Bap' EP go to