 After accompanying her son on an extended European tour in the summer of 1900 Rose , whose health had been poor for some time , suffered a nervous collapse and could no longer work . To replace lost income Grainger began giving piano lessons and public performances ; his first solo recital was in Frankfurt on 6 December 1900 . Meanwhile he continued his studies with Kwast , and increased his repertoire until he was confident he could maintain himself and his mother as a concert pianist . Having chosen London as his future base , in May 1901 Grainger abandoned his studies and , with Rose , left Frankfurt for England . 
