Another scorching day, well over 30°C. We catch a 910am bus with Maria to the train station of Priem and go to Munich where we change trains for Regensburg. Total travel time over 4 hours. In the afternoon we bus to the historic centre. Luck is with us: we are in time for the weekly organ concert at the Dom. Bach, Mendelsohn, Pärt, Franck and Liszt.