It can be either bass cleff or treble cleff, however, most of the euphonium players I know play bass cleff, and I think bass cleff is the standard.
The Euphonium's range is the same as the Bass Trombone starting in the Bass Clef ranging from B Flat 1 below the Bass Clef to B Flat 1 above the Bass Clef.
A euphonium is a low brass instrument. It can be base clef or treble clef. It looks like a small tuba but plays higher notes than the tuba. Most euphoniums have either 3 or 4 valves. See the related link below for a picture and more information on the euphonium.
Bass clef generally. The Tuba is considered to be a non-transposing instrument, so a BBb, CC, EEb or F tuba will read from the same music and it is up to the player to know the correct fingerings. Sometimes (especially in Jazz charts) the parts are written an octave above the actual sounded note, the same as music for a Contrabass Violin (String Bass) or Bass Guitar. For what is called "British Brass Band Music" the Tuba part is usually transposed into the Treble Clef, so the part for a BBb tuba will look different than a part for an EEb tuba.
The word is CLEF. Trombone music is typically written in bass clef. However, music can be found written in tenor and alto clef. Occassionally, treble clef is used.In many older, classical pieces there were three parts written: alto, tenor, and bass. The alto trombone played in alto clef, tenor in tenor clef, and bass in bass clef. Most modern music is written in bass clef.
Percussion instruments used to use the bass clef, but nowadays untuned percussion used what is called the neutral clef. The symbol for the neutral clef is two vertical lines, and music is written onto the staff. Each line or space corresponds to a certain drum or symbol.
drums, trumpet, and tuba Also cello, double bass, bass guitar, Bassoon, contrabassoon, trombone, euphonium and etc
In the orchestra, the cello and string bass, tuba, trombone and bassoon players all use the bass clef. In addition, Baritone in the band can be either treble or bass clef. Timpani players in the percussion section also use the bass clef.
Usually the Trombone, Baritone, Euphonium, Tuba, Bass Clarinet, Baritone Sax all play in bass clef.
A euphonium is a type of musical instrument, so an example sentence could be "my friend Brian plays euphonium in band."
violas dont use treble clef they use alto clef
bass clef
If by the baritone you mean the euphonium in the military and wind bands the part is non-transposing and written in the bass clef. In brass bands it is treated as a transposing instrument (Euphonium in B-flat) the part is written in the treble cleff sounding 1 octave + 1 tone lower than written. If you are refering to the tenor saxhorn or Baritone (B-flat Baritone) as it is called as used in brass bands then it is always a transposing instrument written in the treble clef sounding 1 octave + 1 tone lower than written. Then there is the baritone sax which is written in the treble clef (Baritone Sax in e-flat) which sounds 1 octave+ a sixth lower than written