What is trumpet single tonguing?

Single tonguing is a technique used by trumpet players to produce distinct, evenly spaced notes. It involves using the tongue to touch and release the upper teeth between each note, creating a crisp sound. The tongue should move quickly and lightly, like the letter 'T'. Single tonguing allows for precise articulation and is used in a variety of musical genres, including classical, jazz, and solo performances. It is generally the first tonguing technique taught to student trumpet players. When done correctly, single tonguing on the trumpet should produce clear, separated notes with consistent tone and pitch.