The brass section consists of horns, trumpets or cornets, trombones, euphoniums, and tubas. Both trumpets double on flugelhorn and the trombone doubles on tenor and bass trombones. Trombones without this feature are known as "straight" trombones. The most frequently encountered trombones are the tenor trombone and bass trombone. The standard brass section consists of horns, trumpets, trombones, and tuba. The instrumental arrangement uses an electric guitar, bass guitar, organ, strings, trumpets, trombones, and drums. The sound of car horns is imitated by fanfares on the trumpets and trombones. It also featured a brass section of trumpets and trombones. Valve attachments appear on alto, tenor, bass, and contrabass trombones. Their signature sound relied heavily on two trombones and a flute instead of trumpets. The brass group contains four or five trombones (sackbuts), three trumpets and two cornetts. The trombonist doubles on tenor and bass trombones. Contrabass trombones also can have valve attachments. Notable is the absence of trombones and tuba. Palmieri decided to replace the violins with two trombones for a heavier sound.