Is the oboe a woodwind or brass?
An oboe is a woodwind instrument because an oboe reed is made of wood.
The flute, piccolo, clarinet and bass clarinet, tho oboe and English Horn, the bassoon and the contra bassoon. The horn is not a woodwind, of course, but many composers consider it an "honorary" woodwind because of its usefulness and frequent employment in a woodwind ensemble. The saxophone is neither fish nor fowl - it is considered a woodwind in a woodwind ensemble, and a brass instrument in a brass ensemble.
The french horn is a brass instrument. The sound of the horn can mix very nice with the sound of woodwind instruments. The horn is the only brass instrument that is used in the classical wind quintet, which consist of flute, oboe, clarinet, bassoon and horn. This quintet is sometimes referred to as "woodwind quintet", although the horn really is not a woodwind.
In an orchestra an oboe is part of the woodwind section. The technique is no different than at any other time you play the oboe. Orchestras divide instruments produced by blowing sound through a tube into brass and woodwinds. Brass instruments: trumpets, trombones, etc., at one time were all made of brass. Woodwinds were made of wood, or used a reed, or blew across a hole. Thus, a silver flute is a woodwind. Ravel put…
There are two families of wind instruments, woodwinds and brass. The flute is a member of the woodwind family though it's constructed of metal. The other woodwind family members are oboe, clarinet and bassoon (and their variants). The flute is the only member of the woodwind family that's played without a reed. The other wind instrument family is the "brass" family; trumpet, trombone, French horn, tuba.
The six instruments of the woodwind family are: Doublereeds: The Oboe The Bassoon Single Reeds: The Clarinet The Saxophone no reed at all: the Flute and the least likely member of the woodwind family is The French Horn. The french horn gets into the woodwind family because it is a member of the standard woodwind quartet and woodwind quintet. It is, of course, also a member of the brass family.
Actually the oboe belongs to the woodwind family of instruments. I'm not sure what the question refers to specifically. The trumpet is a brass instrument and the clarinet is a woodwind, so in that sense the trumpet could be considered the "odd one". However, these three instruments can sound absolutely wonderful together in a small wind ensemble. They can also be complimented nicely by piano accompaniment. So please don't count the trumpet out just because…