Bassist Andrew Seward has quit punk rock band Against Me!

The musician is adamant there is "no drama" in his departure from the group, insisting he just wants to reassess his priorities.

In a post on the band's website, he writes, "I reached a point where I need to focus on other things. Respect to (bandmates) Laura (Jane Grace) and James (Bowman). The last 10 years ruled."

Grace, known as Tom Gabel before coming out as transgender last May (12), adds, "It's heartbreaking to know that Andrew won't be standing next to me out on stage the next time I stand upon one. Andrew's been a solid partner. Some of the best sleep I've ever gotten has been in the back of a 15 passenger van with him behind the wheel.

"He's got a steady hand and has always been someone I've trusted. The definition of a good friend. I wish him all the best in his journey."

And Bowman writes, "It's been an honor and privilege to stand on stage with Andrew for the past 10 years. I am sad to see him go, but I wish nothing but the best for him moving forward."

Seward joined the group in 2002.