An online trumpet that sounds like one
Most online instruments are a synthesiser with a picture on top. This one plays recordings of a real trumpet, so the attack, the tone and the decay are the instrument's own. The trumpet is the highest and brightest of the brass, the instrument of fanfares and jazz solos.
A short history of the trumpet
Natural trumpets without valves served armies and courts for centuries and could only play the notes of one harmonic series. Valves, invented around 1815, made the trumpet fully chromatic.
From the keyboard to the real instrument
A real trumpet is written in treble clef, written a whole step higher than it sounds. The keyboard here plays the sounding notes, so a melody you find by ear is the melody you hear. To go further, the free sheet music and chord pages work with any instrument you can read music on.