Throughout the school, students have the opportunity to express their talent and develop their skills as part of an ensemble. In addition to the many student led rock, pop and jazz groups that the students form themselves, our current formal school ensembles include:

Pre Prep Choir; Prep Choir; Prep Chamber Choir; Senior Choir; Senior Chamber Choir; Year 7/8 Choir; Harmonix (a capella group); Junior Strings; Intermediate Strings; Senior Strings; Chamber Groups; Senior Orchestra; Big Band; Jazz Band.

Some of these ensembles are by invitation or audition, requiring a minimum standard and ongoing commitment to regular rehearsals and performances.

Shrewsbury Riverside Campus houses a huge variety of ensembles, including two orchestras; brass, wind, string and percussion ensembles; multiple rock and jazz bands; several choirs, and many other groups who all perform regularly throughout the year as part of the school's own extensive series of recitals, concerts and other performances, as well as within the greater community.

Our students also enjoy opportunities to perform internationally, and they will rejoin FOBISIA events this year.

Students often take the initiative in organising ad hoc performances as part of their own rock and pop ensembles, accompanying community events. In recent years, we have been very pleased to welcome back some of our musical alumni, who are currently studying at or graduated from some of the world’s leading musical conservatoires, to perform on Shrewsbury’s stages once more.

Shrewsbury offers all students the opportunity to have individual instruments or take voice lessons at school. Standards of individual musicianship are high and our students regularly enjoy success in international solo competitions. The instruments we currently offer are:

Piano (Classical/Jazz); Violin; Viola; Cello; Double Bass; Flute; Oboe; Clarinet; Trumpet; French Horn; Trombone; Tuba; Orchestral percussion; Drum Kit; Saxophone; Guitar (Acoustic/Electric); Voice (Classical/Pop); Thai Instruments. Theory lessons are also offered.

The majority of lessons take place during the school day with students coming out of curriculum time on rotation to attend their lessons; with some  lessons for students timetabled outside of curriculum time. Lessons are 30 minutes in length and are taught by full time and visiting teachers who are all practising professional musicians.

Many of the orchestral instrument teachers work with the Bangkok Symphony Orchestra, the Thailand Philharmonic Orchestra and other professional ensembles in Bangkok. Lessons are billed separately.