- AL NAIR (Alpha Gruis). Directly south of Piscis Austrinus, the Southern Fish, is the modern constellation Grus, the Crane. Unlike the bright ancient constellations, the “moderns” were invented between around 1600 and 1800 either to name the figures of the deep southern sky that could not be seen from northern classical lands or to fill in the blanks among the brighter northern groups.
- Electronic music (Wikipedia)
Electronic music is a genre of music that employs electronic musical instruments, digital instruments, or circuitry-based music technology in its creation. It includes both music made using electronic and electromechanical means (electroacoustic music). Pure electronic instruments depended entirely on circuitry-based sound generation, for instance using devices such as an electronic oscillator, theremin, or synthesizer. Electromechanical instruments can have mechanical parts such as strings, hammers, and electric elements including magnetic pickups, power amplifiers and loudspeakers. Such electromechanical devices include the telharmonium, Hammond organ, electric piano and the electric guitar.