Rotary value trumpets are used most widely in Germany and Austrian orchestras in place of piston valve trumpets. The fingerings is the same for piston and rotary trumpets of the same key. So what are the major differences between these two trumpets? A piston valve trumpet has pistons that move laterally within a cylinder. The opening and closing directs the air flow through the tubing which raises or lowers the trumpets pitch. Rotary valve trumpets have plugs within the trumpet that rotate. By changing the airflow through the chamber you essentially achieve the same pitch as a piston valve trumpet. Other differences include, rotary value trumpets usually have smaller bores, larger bells, and longer lead pipes. Rotary trumpets produce warmer tones and are able to blend their sounds more evenly. Choose from our huge inventory of new and used rotary trumpets at amazing prices.