I don't completely understand what you mean by that. As in an average Trumpet, the valves literally face upwards. In terms of how to put them in the trumpet, such as after oiling them, it is different for every trumpet. Often, the valves will have small numbers engraved on them, in which case the numbers almost always face front, or towards the direction of the mouthpiece. If they don't have numbers, they will often have some sort of notch that fits into the valve casings on the trumpet.
As a general rule, when a part indicates "Trumpet" it is for the b-flat trumpet, so there is no difference. Depending on where you play, you may sometimes see a part for "trumpet in C" or some other key, but unless you play in a symphonic orchestra, that isn't all that common.
If, by "bb" you mean b-flat, that is a trumpet that plays in the key of B-flat, as opposed to a C trumpet or E-flat trumpet.
Revelry is actually played with all the valves open. You start on a concert F (G on the Bb trumpet), and go from there. You do not push any valves.
On a standard Bb trumpet, the fingering for a bottom-line Eb is 12 and the fingering for all higher Ebs is 2.
Normally a Bb trumpet would be considered the highest pitched but really it's a piccolo trumpet. A small trumpet with four valves
As a general rule, when a part indicates "Trumpet" it is for the b-flat trumpet, so there is no difference. Depending on where you play, you may sometimes see a part for "trumpet in C" or some other key, but unless you play in a symphonic orchestra, that isn't all that common.
Dizzy played a Bb (B flat) trumpet.
On a standard Bb trumpet, the fingering for Ab is 23.
If, by "bb" you mean b-flat, that is a trumpet that plays in the key of B-flat, as opposed to a C trumpet or E-flat trumpet.
You can use any instrument to play jazz but the "Jazz" trumpet (A trumpet with Valves) in the key of Bb is the best.
Revelry is actually played with all the valves open. You start on a concert F (G on the Bb trumpet), and go from there. You do not push any valves.
On a standard Bb trumpet, the fingering for a bottom-line Eb is 12 and the fingering for all higher Ebs is 2.
On a standard Bb Trumpet, the fingering for a low Eb is 23 and the fingering for higher Ebs is 2.
Many types of trumpets exist, and most of these are made with both piston and rotary valves.Bb TrumpetC trumpetD trumpetEb trumpet (sometimes a convertible D trumpet)G trumpet (not very common, also called soprano trumpet)Piccolo Trumpet (keyed in A or Bb, and in the case of Bb sounds a full octave above a normal Bb trumpet)There are some other types of horns that are either not classified as trumpets or are extremely uncommon:CornetsFlugelhornsBuglesSlide Trumpet/soprano Trombone (A trumpet that has a single slide instead of valves)Bass Trumpet (A trumpet that sounds in the trombone register)Pocket Trumpet (A trumpet in the key of Bb with highly coiled tubing that causes it to be approximately half the size of a regular Bb trumpet)The Shewhorn (Bobby shew's modified two-bell trumpet)The four-valve quarter tone trumpetThe Monette Prana Flumpet
Normally a Bb trumpet would be considered the highest pitched but really it's a piccolo trumpet. A small trumpet with four valves
On a standard Bb trumpet, the fingering for A# is 1.
if you are playing a Bb trumpet, concert A is your B, and concert G is your A. To transpose to the trumpet note, go one whole step (two half steps) higher than the "concert" pitch.