Bass guitar in 1958. 1956 saw the appearance at the German trade fair "Musikmesse Frankfurt" of the distinctive Höfner 500/1 violin bass made using violin construction techniques by Walter Höfner, a second generation violin luthier. The instrument is often known as the "Beatle Bass", due to its endorsement and use by Beatles bassist Paul McCartney. In 1957 Rickenbacker introduced the model 4000 bass, the first bass to feature a neck-through-body design in which the neck is part of the body wood. The Fender and Gibson versions used bolt-on and glued-on necks. With the explosion of the popularity of rock music in the
Bass guitar two rooms with bass amps for classes and ten private lesson studios equipped with audio recording gear. Berklee offers instruction for the four-, five-, and six-string electric bass, the fretless bass, and double bass. "Students learn concepts in Latin, funk, Motown, and hip-hop, ... jazz, rock, and fusion." In Canada, the Humber College Institute of Technology & Advanced Learning offers an Advanced Diploma (a three-year program) in jazz and commercial music. The program accepts performers who play bass, guitar, keyboard, drums, melody instruments (e.g., saxophone, flute, violin) and who sing. Students get private lessons and perform in 40 student ensembles.