instruction: A bar chart for showing the number of the dates of performances with attending members whose roles are 'Violin', could you list how many date in asc order please?
response: SELECT Date, COUNT(Date) FROM member_attendance AS T1 JOIN member AS T2 ON T1.Member_ID = T2.Member_ID JOIN performance AS T3 ON T1.Performance_ID = T3.Performance_ID WHERE T2.Role = "Violin" GROUP BY Date ORDER BY COUNT(Date)