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A'priori brings a guitar driven sound with a classic edge to their modern rock style. Despite an industry that has diluted rock music to the point where one can’t even be sure there’s such a thing as straight rock ‘n roll anymore, A'priori give the pure rock fans what they need and desire. With exhilarating guitar solos, raspy, powerful vocals and keyboards that reinforce the sound with such precision and depth, the lack of a bass guitar is unnoticeable and refreshing, A'priori will leave you begging for more!

​A'priori began in 2007 by Tony Lang and brother Mouse in the green isles of Southern Ireland. With influences from the likes of TRex, Guns n Roses, Kiss, The Doors, David Bowie and a love of Classical music influenced their writing style in such a way that it created the unique sound that is A'priori. The addition of Mark Stuart on keyboard brings a completely modern edge to the sound, and gives a more extensive range to their upcoming material.

​Early on they played with Eric Bell of Thin Lizzy at the Noel Reading Festival. They played the Clonakilty International Guitar Festival and they travelled the length and breadth of the UK playing gigs and spreading the A'priori sound. They went on to support Dave Evans of AC/DC at the Blackpool in 2012 Tour. They played at Hellfest 2013 and Lowther Live 2013. They played sold out gigs at Layton Institute in 2011 and 2012. They played the Lancashire Rock and Bike show in 2011 and 2012. They went down a storm at Wildifre Festival 2016 at Wiston Lodge, in Lanark.

After the success of their Chained album and Tour in 2012 and the sold out Venom album, A'priori are due to release their new album Black Church soon. But as a taster, you can find the latest track Better Man on youtube.

​They won the Listeners Choice Band of the Year 2012 on Total Biker FM Radio. They had excellent reviews for their Chained album. They had 3 appearances on Impact Radio and broke their fone in record on each successive appearance. They recently had articles in Stencil Magazine and Manchester Rocks. They can be heard on the playlists of TBFM, Midlands Metalheads Radio, Total Rocks Radio, Noize Level Critical Radio, Metal Shock in Finland, Unsigned Radio in California and many more. They recently had a half page article in Hard Rock Hell Magazine, in their Up And Coming Bands section.


A'priori give the pure rock fans what they need and desire. With exhilarating guitar solos, raspy, powerful vocals, beautifully harmonised bass and the pounding heartbeats of the drums, A'priori will leave you begging for more!