Recorder (musical instrument) Recorder (musical instrument) The recorder is a woodwind musical instrument in the group known as "internal duct flutes"—flutes with a whistle mouthpiece. A recorder can be distinguished from other duct flutes by the presence of a thumb-hole for the upper hand and seven finger-holes: three for the upper hand and four for the lower. It is the most prominent duct flute in the western classical tradition. Recorders are made in different sizes with names and compasses roughly corresponding to different vocal ranges. The sizes most commonly in use today are the soprano (aka "descant", lowest note C), alto (aka "treble",
Triangle (musical instrument) Triangle (musical instrument) The triangle is an idiophone type of musical instrument in the percussion family. It is a bar of metal, usually steel but sometimes other metals such as beryllium copper, bent into a triangle shape. The instrument is usually held by a loop of some form of thread or wire at the top curve. "It is theoretically an instrument of indefinite pitch, for its fundamental pitch is obscured by its nonharmonic overtones." Triangle has a prestigious history. The triangle in its ancient form had rings strung to the lower bar. Yet the first mention we find of a