Les Sirenes Female Chamber Choir – Christmas Concert. This was my first Christmas Concert as a member of Les Sirenes and I really enjoyed the performance. Les Sirenes is a female chamber choir consisting of 26 vocalists, all students and graduates of the Royal Conservatoire of Scotland. Earlier in 2012, the choir was awarded the prestigious title of Choir of the Year 2012. The choir was established by Andrew Nunn our Conductor in 2007.