The term 'A Brass Instrument Without Valves' can be answered with six different solutions: BUGLE (5 letters), SITAR (5 letters), TROMBONE (8 letters), TUBA (4 letters), HORN (4 letters), and TRUMPET (7 letters). A BUGLE is a brass instrument without valves that is typically used in military ceremonies. A SITAR is a stringed instrument from India that is played with a pick. A TROMBONE is a brass instrument with a slide that is used in jazz and classical music. A TUBA is the largest and lowest-pitched brass instrument, often used in orchestras and marching bands. A HORN is a brass instrument that is similar to a TRUMPET but has a wider bore and a more mellow sound. Finally, a TRUMPET is a brass instrument with three valves that is commonly used in jazz and classical music.