Thanks for the video—it shows the cause of your problem.
The * (asterisk) in front of the Default Drum Set: indicates that you don’t have the drum set either imported or activated yet. Here’s the steps to get the bass and horns to sound.
Making matters challenging for users is that after searching the forum I could not find the NP Standard Bass Horns kit (it might be there but I’m just not smart enough to find it 
)
I posted the kit to my Dropbox. Click on the link to Dropbox and download the kit https://www.dropbox.com/s/hpsjula2creng5q/NP_Standard_Bass_Horns.drm.zip?dl=0
Unzip the file to your desktop
Launch the BeatBuddy Manager (BBM)
BBM - File - Import - Drumset
Click on the Drum Sets tab
Scroll to the bottom of the list of drums
Check the box (while you’re in the drum sets list, check the boxes for the other kits that you want active in the BeatBuddy Manager (BBM) and the BeatBuddy (BB))
Return to the Songs tab and highlight your song
Press Play (NOTE: the asterisk should no longer be in the drum set name
Save your project
I’m thinking that you still have not spent some time with the BeatBuddy Manager (BBM) Quick Start Guide. Here’s a link to resources that you might find helpful resources