When using the Midi Maestro with the BB, the accent hits page of the MM triggers sounds that are part of the BB drumkit. Some early BB drumkits were made without a tambourine. Check that there is a tambourine in the kit, by opening the kit in BB Manager. To do that, find the kit’s name in the list of drum kits and double click on it. You can then scroll through the kit’s content. Tambourine should be at midi #54. If it is there, you can raise the volume if it is set to a negative value. If you make an adjust like that, you need to then go to Drumkits>Save Drumkit to store the change. If there is no Tambourine in the kit, and the kit is not at 100% in size, you can add a tambourine wav to the kit. Singular has provided a set of accent hit wavs which are available in the Downloads section of the BB product page. Search for my tutorial on “editing a drumkit” for more information.