Barry "Bazza" Grint is an English mastering engineer he has worked on multiple UK Number One albums and singles and had more than 100 UK Top Ten hits. Projects for artists include: Sam Smith, Lewis Capaldi, Tom Walker, and George Ezra. Older hits include work for Madonna, Prince, Puff Daddy, Eric Clapton, David Bowie, The Beatles, Oasis, Keane, Beach Boys, Jessie J, Rod Stewart, Paul Simon, Van Halen, Michael McDonald and A-ha.

He began cutting records at Trident Studios in 1984 mastering international tracks for the UK and Europe. He identified his work by etching Bazza in the run out groove and over the years various incarnations have included Bazza @ Audio One, Bazza @ Tape One, Bazza @ Porky's, Bazza @ Abbey Road, Bazza @ Alchemy and The Wizard. He is currently Director of Mastering and a Mastering and vinyl cutting engineer at Air studios.

Representing the Music Producers Guild, Grint worked with the European Broadcasting Union (EBU) to create a standard for embedding the International Standard Recording Code (ISRC) within a Broadcast Wave Format (BWF). This has been adopted by the many manufacturers of mastering software internationally and is supported by The International Federation of the Phonographic Industry (IFPI), the British Phonographic Industry (BPI) and the Association of Independent Music (AIM).