sentences:  The records of Moritz were not preserved, though a wide-bell bass trumpet with military-band proportions in 8' C with B and A crooks does make an appearance in their post-1900 catalogue, while Gebrüder Alexander of Mainz offered a narrow-bore model in either E or C.
  
  The model normally used today is in 8' C with four rotary valves, and is played by a trombonist owing to the size of the mouthpiece.Bass trumpets in E are usually played by trumpeters as the mouthpiece is closer in size to that of the standard B trumpet.Wagner wrote adventurously for his new addition to the brass section, exploiting open and muted effects, and extremes of range and dynamics.