The time has arrived for jazz audiences to experience a pair of brand new instruments -- the first of their kind in the world and played by award-winning trumpeter-composer-producer-bandleader Christian Scott.

"I've got two hybrid b-flat horns," said Scott, who will be performing live at Bohemian Caverns this week. "One is called a siren -- a hybrid of a trumpet, flugelhorn and a coronet. The other is a reverse flugelhorn, which is a [kind] of trumpet but the tuning is backwards."

Now, the last thing Scott would want is for the public to be is intimidated by these terms.

"There's a strange hovering above the music that it has to be an intellectual exercise in order for it to be jazz, and I think it's turned off more visitors than it's turned on," he noted. "One of the reasons that I love Bohemian Caverns is as soon as you step in there, all that stuff walks out the door and you are free to be who you are."

Christian Scott
Where: Bohemian Caverns, 2001 11th St. NW
When: 7:30 and 9:30 p.m. Thursday, 8:30 and 10:30 p.m. Friday and Saturday, 7 and 9 p.m. Sunday
Info: $22; 202-299-0800;

And along with the hybrid horns comes a new kind of sound that Scott, who honed his craft at the New Orleans Center for the Creative Arts and the Berklee College of Music in Boston, calls stretch music.

"If you look at jazz music as a sort of 20th-century fusion form, then stretch is sort of an update of that improvisational context where you cultivate all of the musical vernacular. It doesn't matter what culture or what genre it comes from; it can be put into stretch music, and we figure out a seamless way to be able to do that compositionally and also maintain the elements of improvisation that's called jazz," he said.

Scott, who composes all of his own music, will perform primarily from his latest album, "Christian aTunde Adjuah." In the album's liner notes, Scott writes that the listener will hear "a stretching of jazz, not a replacement."

Scott plays the Caverns with his band, guitarist Matthew Stevens, drummer Jamire Williams, bassist Kris Funn and pianist Lawrence Fields. Alto saxophonist Louis Fouche III will also lend his sound to the mix.

"Every time I play my horns, I'm exhausted afterwards because I give my all, and it's an intense experience," Scott said. "But you came here for a show, and we're not going to leave you hanging."