BSG offers a range of extra-curricular musical groups, including an orchestra, various chamber ensembles (currently including a string quartet, baroque groups and brass ensemble), small pop and jazz ensembles, a chamber choir and a full school choir.
Girls currently represent the school in the Somerset County Youth Orchestra, the Somerset County Youth Concert Band, and the National Youth Choir. Students work at all levels, from beginner to diploma on all standard orchestral instruments, voice, guitar, drums and keyboard.
Lessons are delivered by 18 specialist visiting instrumental teachers. The Associated Board visits the school three times a year in addition to the London College of Music, who visit once a year for external exams.
Concerts at school include Christmas and Easter church services, a monthly lunchtime recital programme, winter, spring and summer concerts, ad hoc evening events including charity fundraisers, acoustic/open-mic events, themed concerts and competitions.
Performance venues outside school include local parish churches (Shepton Mallet, Wincanton and Somerton in recent years), cathedrals (Wells and Exeter), community halls, hospitals and hospices, as well as joint concerts with other local schools. Further afield the students have visited Paris in 2012, the Rheinland, Germany in 2014, and Tuscany, Italy in 2016.
Every other year the department joins forces with the Drama department for a musical production. Recent productions have included ‘Grease’, ‘Beauty and the Beast’, ‘The Sound of Music’ and ‘The Wizard of Oz’.
The formal curriculum includes traditional music options at GCSE and A level, with the option of Music Technology also available in the Sixth Form. The curriculum in Senior 1-3 includes performing, creative and analytical aspects of traditional, contemporary and world music.
Music pervades the life of the school more generally with weekly performances in assembly and occasional inter-hall competitions as standard. There are currently nine Music Scholars who play an active role in the day-to-day running of the department.
The Music department has recently recorded a CD as part of the school's annual Arts Week. Other regular features of Arts Week include visiting lectures/workshops, and recent events have included a lecture on Doctoral Composition and a practical workshop based on Indonesian Gamelan music.