A digital piano is a type of electronic keyboard designed to serve primarily as an alternative to the traditional piano, both in the way it feels to play and in the sound produced. It is intended to provide an accurate simulation of an acoustic piano. Some digital pianos are also designed to look like an ordinary piano, both the upright or grand piano. Digital pianos use either a synthesized emulation or samples of an actual piano, which are then amplified through an internal loudspeaker. Digital pianos incorporate weighted keys, which recreate the feel of an acoustic piano.
Composers using electric bass include Christian Wolff (Electric Spring 1, 1966; Electric Spring 2, 1966/70; Electric Spring 3, 1967; and Untitled, 1996); Francis Thorne (Liebesrock 1968–69); Krzysztof Penderecki (Cello Concerto no. 1, 1966/67, rev. 1971/72; Capriccio for Violin and Orchestra, 1967); The Devils of Loudun, 1969; Kosmogonia, 1970; and Partita, 1971); Louis Andriessen (Spektakel, 1970; De Staat, 1972–1976; Hoketus, 1976; De Tijd, 1980–81; and De Materie, 1984–1988); Pelle Gudmundsen-Holmgreen (Symfoni på Rygmarven, 1966; Rerepriser, 1967; and Piece by Piece, 1968); and Irwin Bazelon (Churchill Downs, 1970).
The bass guitars will have either 4, 5 or 6 strings. Though it may be tempting to go for the guitar with 6 strings, going for the 4-stringed is good for a new player. A bass guitar is a type of stringed instrument that plays a lower tone and sounds more impressive than a regular guitar. The most notable difference is that a bass guitar may have as few as four strings and they are much thicker. The thicker strings are what give the bass its low tone.
Bassists trying to emulate the sound of a double bass sometimes pluck the strings with their thumb and use palm-muting to create a short, "thumpy" tone. Monk Montgomery (who played in Lionel Hampton's big band) and Bruce Palmer (who performed with Buffalo Springfield) use thumb downstrokes. The use of the thumb was acknowledged by early Fender models, which came with a "thumbrest" or "Tug Bar" attached to the pickguard below the strings. Contrary to its name, this was not used to rest the thumb, but to provide leverage while using the thumb to pluck the strings. The thumbrest was moved above the strings in 1970s models (as a true thumbrest) and eliminated in the 1980s. Nevertheless, some reissued versions of vintage Fender basses in the 2010s do include a thumbrest.