Hi Mark,

a trumpet with vibrator is an enrichment for certain songs. But if the effect is too strong, the sound is unnatural.

I have set 2 instrumental songs on YT. They are played with the Trumpet and the solo trumpet. I think the vibrator effect is good.

https://www.youtube.com/watch?v=Iw49IqQWW5o

https://www.youtube.com/watch?v=JP7nmqvONk4

In Music Stylist - Musical Category - Easy Listening - Ballad Orchestra - Brass Smoochy is also a useful Trumpet with vibrator effect.

Also in Music Stylist & trad folk - Mountain Music- Dolomiti Trumpet, you find a Trumpet with vibrator.

Another possibility would be the sound DSP - vibrato (Vibrato 1-8). If you "Depht" are altering, also changes the vibrator effect.