What is the fine-grained topic of the following text: As a composer and bandleader Janisch has released five critically-acclaimed albums to date: The TransAtlantic Collective’s Traveling Song (co-led with Patrick Cornelius) in 2008, Purpose Built (debut solo album) in 2010, Banned in London (co-led with Aruan Ortiz) in 2013, and First Meeting: Live in London, Volume 1 (co-led with Lee Konitz, Dan Tepfer & Jeff Williams) in 2014. Only return the topic.
Janisch's music career and album releases.