Blue interjections For 4 trombones: 3 tenors and 1 bass Blue Interjections by Luke Ellard is a work all about energy and interaction between performers. With great influence drawn from the sound world and rhythms of jazz (Blue) meeting the jagged, angular lines of melody passed between, and sometimes interrupting each performer (Interjections), not only is the audience treated with a fun, imaginative, and colorful work but the performers will enjoy the challenge and joy within the piece!