Timing of the Choirs Classes

There is an error in the syllabus. The choir classes will be on  Monday 15th May and will start at 4 p.m. This is not as advertised

See map

Section
Class
First Competitor's Name
(as it will appear in programme)
Date of birth (if under 18)
(please use DD/MM/YYYY format) *
Instrument / voice
Second Competitor's Name
(where applicable)
Date of birth (if under 18)
(please use DD/MM/YYYY format) *
Instrument / voice
Group/Choir Size (if applicable)
Title and Composer of piece to be performed
(if applicable)
Time to perform (if applicable)
Class fee