What is the fine-grained topic of the following text: One instrument is the chosen disepline every year and these are on a rota: 2010 – The fiddle, 2011 – The flutes and whistles, 2012 – The Harp and the Pipes, 2013 – The metal reed instruments (Accordian, concertina etc.) Only return the topic.
Annual rotation of focus on different musical instruments