The band in this photo is probably the Washta Cornet Band playing for a street carnival, c. 1910. The town apparently did not have a permanent band stand as newspaper references around this time consistently mention the band playing in the street. The temporary stand shown in the picture, however, may have belonged to the band and was designed for reuse. Note the cornet player standing to play a cornet solo.
THE CHEROKEE TIMES, 1906 Jun 11
WASHTA: Arrangements have been made with the Washta Cornet Band to give a concert on the street every two weeks when the weather is suitable, beginning Saturday, June 9th. 
[Cherokee] THE SEMI-WEEKLY DEMOCRAT, 1907 Aug 19
WASHTA: The Washta band will give another street concert Saturday night. They will have their new band stand set up on the corner by the tennis grounds. 
THE CORRECTIONVILLE ARGUS, 1913 Jul 18
The Washta band played several selections on the street…
THE CHEROKEE TIMES, 1919 May 6
WASHTA: There will be a free concert by the Washta band on the street next Friday evening. The band boys are also going to have a box sociable and program following the concert, in the I. O. O. F . hall.