Welcome to the official website of
James Blennerhassett

He has toured around the world and recorded with amazing artists and bands such as Gilbert O’Sullivan, Elvis Costello, The Rolling Stones, Mary Black, Derek Ryan, Daniel O’Donnell and Paul Brady to name but a few…

As a Bass Guitarist with years of recording and performance experience James will bring the X-Factor to your stage. He plays both Electric Bass Guitar and Double Bass. As a composer he has released his own instrumental albums ‘End of a Longer Day’ , ‘A Small Shadow’ and ‘En Splendo Isoleco’

Welcome to his site.


Title track ‘Blue Sky Bare Branches’ from the album ‘End of a Longer Day’

James is a very dedicated and hard-working bassist who has always given 100% to any activity he is part of, whether touring, recording, directing or composing – plus he’s great company too!

Nick Scott – Mary Black Band

Let’s make music

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book james


Guitar is for the head, drums are for the chest, but bass gets you in the groin.
Suzi Quatro


Hi, I’m James and welcome to my site. I’m a session Bassist and contemporary composer based in Ireland. I’ve been lucky enough to work with the best and have toured around the world. Check out my performances and recordings with top Irish and international artists. I am also a member of Derek Ryan’s touring band.

James has played live with many renowned Irish and international musicians including: 

Van Morrison, The Chieftains, Gilbert O’Sullivan, Cara Dillon, Eleaner McEvoy, Sharon Shannon, Nathan Carter, Ronan Keating, Mary Coughlan, Daniel O’Donnell, Derek Ryan, Ashley Campbell, Crystal Gayle, Christy Hennessy, Mary Black, Paul Brady…

Recordings include: 

The Chieftains with The Corrs / Rolling Stones / Marianne Faithfull / Elvis Costello / Eros Ramazotti / The Rankin family, Mary Black, Paul Brady, Steve Earle, Sharon Shannon with Jackson Browne, Frances Black, Daniel O’Donnell, Brian Kennedy, Derek Ryan, Nathan Carter, Maura O’Connell, Davy Spillane, A Woman’s Heart, Mike Denver…

BOOK JAMES for rehearsals, gigs and recordings


James is a music composer and producer. Creating Bass lines using Double Bass and Bass Guitar, all from his own state-of-the-art studio. The cost of an online Bass session is €50 per track. He can also do the session in your studio if required.


James uses Steinberg Cubase Pro 12 and Dorico Pro 4 with Steinberg and Apogee interfaces, Manley & Audient preamps, Brauner, AKG & many other microphones including several ribbons & will record at any desired sample rate up to 192


Just send James an mp3 or wav of the track(s) specifying Bit/sample rate via Dropbox

James normally sends Bass tracks back eqd, compd & cleaned ready to drop into your song (can send them flat if desired)

BOOK JAMES to get that Bass line!


Ever wanted to create your own sound? Record your own music?
At Blenntech we teach you how using Cubase – the leading music production technology and Dorico – Steinberg’s flagship music notation software. Learn the tools of the trade to create your own sound and find your own voice. For more info on my online training courses visit Blenntech.com

At Blenntech James provides beginner and advanced online courses for musicians, composers and music makers of all types in the use of Steinberg’s powerful Cubase for music production and Dorico for music scoring. James is a certified Steinberg trainer.

BOOK JAMES and start recording!

Let’s make MUSIC

Book now

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