Not sure what you're question's asking, but transposing music is taking an existing piece of music in one key and putting it into another key note for note. So it would be the same melody in a different key.
The effect of sounding a melody an octave lower would be to make it "deeper" sounding. Going from the sound of a woman's voice to a man's voice would be the most obvious example. On a keyboard, moving to the left 7 white notes would make the sound an octave lower. The sound of a 'cello is approximately and octave lower than a viola. The sound of a double bass is approximately an octave lower than a 'cello. The sound of a tuba is approximately an octave lower than a tenor Trombone. The sound of a Flute is approimately an octave lower than a piccolo. Lower sounds tend to be less brilliant to our ear and more mellow than higher sounds generally.
The classical guitar is transposing because it is played an octave lower than read, I think.
No and yes. The written note is what is heard but it sounds an octave lower than written.
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
The violin is a non-transposing instrument, which means when asked to play, for example, a "C", the violin plays its "C" and the pitch is the same as a "C" on the piano. Other non-transposing instruments include the cello, double bass, piccolo, flute, oboe, bassoon, trombone, tuba, vibraphone, and marimba.
No, not a full octave, but it does have a lower range than a tenor trombone.
You can either transpose the music down a few semitones or play the whole piece an octave lower. I don't know the notes so I can't tell you which, but transposing the music will put it at a different pitch and be easier to play.
8va means that you have to play the tune an octave higher or lower. Together with 8va you should find a hairpin that starts from where you should play an octave higher or lower till when you should stop. If you find it on top of the music you should play it an octave higher, if you find it below the music, you should play it an octave lower
Yes. It's exactly one octave lower.
Nope. Other way around. The bass clarinet IS twice as long as the Bb one, and IS an octave lower.
an octave is a sound ratio An octave is a span of eight diatonic notes in music. In other words, it is the same note played seven full notes higher or lower.
50%.
8notes. It is for piano, but you can make it either an octave higher or an octave lower, whatever is necessary.