1. E-flat Clarinet: The E-flat clarinet is a transposing instrument, meaning that it sounds a different pitch than the written notes. When played, the E-flat clarinet sounds a whole step lower than written.
2. E-flat Alto Saxophone: The E-flat alto saxophone is another transposing instrument, and it also sounds a whole step lower than written. It is commonly used in jazz, concert bands, and marching bands.
3. E-flat Trumpet: The E-flat trumpet is a brass instrument that is slightly longer than the B-flat trumpet. It is pitched a half step lower than the B-flat trumpet, and it is often used in brass bands and orchestras.
4. E-flat French Horn: The E-flat French horn is a valved brass instrument that is pitched a half step lower than the F horn. It is widely used in classical and orchestral music.
5. E-flat Baritone Saxophone: The E-flat baritone saxophone is a transposing instrument that sounds a whole step lower than written. It has a warm and mellow sound and is commonly used in jazz and concert bands.
6. E-flat Tuba: The E-flat tuba is the largest and lowest-pitched member of the brass family. It is pitched a whole step lower than the B-flat tuba, and it is commonly used in brass bands, marching bands, and orchestras.
These are just a few examples of instruments that are typically pitched in the key of E flat. Other instruments that may also be found in this key include E-flat mellophones, E-flat flugelhorns, and E-flat bass clarinets. The specific pitch and range of each instrument may vary depending on the manufacturer and model.