             data-target="solo4"
                aria-pressed="false"
                onclick="toggleButton(this)"
              >
                SOLO
              </button>
              <input type="hidden" id="solo4" name="solo4" value="0" />
              <button
                id="mute4_btn"
                type="button"
                class="toggle"
                data-target="mute4"
                aria-pressed="false"
                onclick="toggleButton(this)"
              >
                