content True False vertical false false Work go-previous-symbolic False object-select-symbolic False true 12 12 18 12 6 6 6 vertical start 12 6 Overview none True Select a composer composer_button Select center True Title title_entry center True True Publish to the server upload_switch center True horizontal 12 6 start end True Instruments false list-add-symbolic horizontal 12 6 start end True Structure false folder-new-symbolic false list-add-symbolic loading vertical false false Work true true center center True