Joanna Tomlinson has established an outstanding reputation for her work as a conductor, singer, and vocal coach with choirs of all ages and sizes.
She is Artistic Director of the Military Wives Choirs, a network of over 70 choirs bringing together women with connections to the military. She is also the conductor of the London-based Constanza Chorus, with whom she has conducted the London Mozart Players and the Orchestra of the Age of Enlightenment. The choir has appeared at the BBC Proms and performed across Europe, including at St Peter's Basilica in Rome. She also conducts the Whitehall Choir, with whom she has performed at Sinfonia Smith Square and made premiere recordings, including works by Cecilia McDowall.
Joanna frequently appears as a guest conductor with the BBC Symphony Chorus, Epiphoni, and at the Royal Opera House as part of its Sing at the ROH program. She has also delivered workshops and community singing programs for Glyndebourne, the Association of British Choral Directors, and the Association of Teachers of Singing.
As a Principal Conductor of the National Youth Choir (ages 9–15) for five years, she made numerous recordings and conducted at venues including the Royal Albert Hall. During her tenure as Artistic Director of the internationally renowned Farnham Youth Choir, the choir won two gold medals at the European Choir Games in 2019 and appeared in the live final of The X Factor on ITV in 2018.
Having earned a Distinction in Singing from the Royal College of Music, Joanna brings to her work the knowledge and experience of performing with world-class professional choral groups such as the BBC Singers, London Voices, Gabrieli Consort, and Sonoro.

Basilio Astulez is a choir conductor and professor at the Municipal Conservatory of Leioa. He is also the founder of the children's choir Leioa Kantika Korala, established in 2000. Since that year, he has also conducted the youth choir SJB, which brings together over 250 singers aged 7 to 25. The choir has earned numerous awards in Spanish and European competitions.
In 1999, he founded the women's chamber ensemble Vocalia Taldea, which has won more than 20 prizes in major international choral competitions.
As the leader of these ensembles, he has conducted 12 recordings, undertaken numerous international tours across Europe, Asia, and the Americas, and collaborated with distinguished soloists, orchestras, conductors, and ensembles.
Currently, he teaches and trains at educational institutions, universities, and various national choral federations. He is frequently invited to serve as a jury member at competitions and to give courses and seminars on choral singing worldwide. Since 2018, he has been a Professor of Choral Conducting at the Higher Conservatory of the Basque Country, Musikene, and serves as the Director of EHGA (Basque Youth Choir).

Dr. Darius Lim is a celebrated Singaporean Conductor-Composer known for his visionary approach to choral music. As the Founder and Artistic Director of Voices of Singapore, he holds prominent positions locally and internationally, including CEO of The Voice Company and Board Member of the International Federation for Choral Music. His compositions, known for their dream-like textures and hopeful messages, have gained international acclaim and been performed by renowned ensembles such as Voces8 and the Hong Kong Philharmonic Orchestra. He is also the conductor of numerous award-winning choirs who have won Grand Prix and Category Champions in international competitions across Asia and Europe.
Lim's works have been featured by Sir John Rutter, Choir & Organ Magazine, and at major choral events like the 2023 World Symposium on Choral Music in Istanbul. He is the first Singaporean composer to release a full album on NAXOS Records. Under his leadership, Voices of Singapore has transformed the choral landscape, with over 1300 singers and 30 choirs, including those serving underprivileged communities.
Lim has led significant national projects, including the 2020 Singapore Virtual Choir Project and the conductor of the 2024 National Day Parade with Voices of Singapore. Recognized globally as a leading advocate for choral music, he has been invited to lecture and adjudicate at international events such as the World Choir Games and the Romano Gandolfi International Choral Conducting Competition.
Darius Lim's contributions to the Singaporean music industry were further acknowledged in 2021 when he presented "The Voices of Singapore – Strengthening a Nation Through Choral Singing" at TEDx, in 2024 when he was presented with the Distinguished Alumni Medal by the Nanyang Academy of Fine Arts, and in 2025 when he was awarded the Tatler Leaders of Tomorrow Gen.T Award.