In addition to recording and performing, the King's Singers have a commitment to education, often participating in master classes and workshops. Every two years they hold a residency at the Schleswig-Holstein Music Festival in Lübeck, Germany, at which up to 12 a cappella groups from all over the world are taught over a period of four days, culminating in a public performance. The group also leads around a dozen additional one-off masterclasses throughout the year, normally in conjunction with concert performances and often as part of their twice-yearly US tours. During its time, the King's Singers have taught many groups that have now become known in their own right, such as Club for Five, The Real Group, Rajaton, Singer Pur and Calmus Ensemble.