The Morassi Quartet have performed at the Lake District Summer Music, Dartington Summer Music, and Berkshire Chamber Music Festivals. Most recently, the Quartet performed a recital at a sold out Elgar Room in the Royal Albert Hall as part of their Classical Coffee Morning series. They also have an international presence after performing at the “Muzyka u Zródel” Festival in Bydgoszcz, Poland in October of 2023. They have also performed regularly at other prestigious venues around the UK including Southwark Cathedral, Brighton Royal Pavilion, The Drill Hall Lincoln, and St. Peter’s Church Stockbridge. Upcoming highlights include performances at ‘Music Coll’ as part of the Tunnell Trust’s study and performance week in the Isle of Coll this summer.

The Quartet have received regular guidance from distinguished chamber musicians Simon Rowland-Jones and Yuri Zhislin. They have also collaborated with world class chamber musicians including members of the Brodsky, Marmen, Sacconi, Barbican and Chiaroscuro Quartets. They are looking forward to participating in a masterclass with Quatuor Ébène in September 2024, as part of the Oxford Chamber Music Festival.

Natasha plays a 1975 Gio Batta Morassi violin, made in Cremona. Katie plays an 1865 Sebastian Vuillaume violin, made in Paris. Toby plays a modern German viola by Wilhelm Brückner. Iza plays a Giovanni Grancino cello from 1721.

The Morassi Quartet was formed in 2018 at the Royal College of Music by violinists Natasha Humphries and Katie Mazur, violist Toby Warr, and cellist Iza Stefanska. Regarded as ‘artists who play as one, with an emotional maturity belying their years’, the quartet aim to bring a fresh and bold flavour to the chamber music scene.

The Quartet

Another side the quartet are very passionate about is keeping classical music relevant to modern culture and reaching wider audiences. They regularly perform Candlelight Concerts organised by Fever, a leading live entertainment discovery platform. Through these concerts, they have performed diverse programmes by composers such as Mozart, Vivaldi, Hans Zimmer, John Williams, and popular artists such as ABBA, Queen, and Ed Sheeran.

Meet the Players

  • Natasha Humphries

    Violin 1

  • Katie Mazur

    Violin 2

  • Toby Warr

    Viola

  • Iza Stefańska

    Cello