Extended-range basses (ERBs) are basses with six to twelve strings—with the additional strings used for range rather than unison or octave pairs. A seven-string bass (B0–E1–A1–D2–G2–C3–F3) was built by luthier Michael Tobias in 1987. This instrument, commissioned by bassist Garry Goodman, was an early example of a bass with more than six single course strings. In 1999 South American ERB player Igor Saavedra designed one of the first eight-string ERBs known, and asked Luthier Alfonso Iturra to build it for him.  Conklin builds custom ERB basses. The Guitarbass is a ten-string instrument with four bass strings (tuned E–A–D–G) and six guitar strings (tuned E–A–D–G–B–E). Luthier Michael Adler built the first eleven-string bass in 2004 and completed the first single-course 12-string bass in 2005. Adler's 11- and 12-string instruments have the same range as a grand piano. Subcontrabasses, such as C♯–F♯–B–E (the lowest string, C♯0 being at 17.32 Hz at around the limit of human hearing) have been created. Ibanez had released SR7VIISC in 2009, featuring a 30-inch (762 mm) scale and narrower width, and tuned as B–E–A–D–G–C–E; the company dubbed it a cross between bass and guitar.[better source needed]
"Soapbar" Pickups are so-named due to their resemblance to a bar of soap and originally referred to the Gibson P-90 guitar pickup. The term is also used to describe any pickup with a rectangular shape (no protruding screw mounting "ears" like on P, J or MM pickups) and no visible pole pieces. Most of the pickups falling into this category are humbucking, though a few single-coil soapbar designs exist. They are commonly found in basses designed for the rock and metal genres, such as Gibson, ESP Guitars, and Schecter, however they are also found on 5- and 6-string basses made popular by jazz and jazz fusion music, such as Yamaha's TRB and various Peavey model lines. 'Soapbar pickups' are also called 'extended housing pickups', because the rectangular shape is achieved simply by making the pickup cover longer or wider than it would have to be to only cover the pickup coils, and then the mounting holes are recessed inside these wider dimensions of the housing.
Just like the acoustic instruments they're derived from, digital pianos come in different sizes. They also offer dozens of options for your perusal, so you can weigh all kinds of factors to find the right model for you. For instance, if you're looking to pack a lot of piano into as small a space as possible, consider instruments such as the Williams Allegro 88-Key Digital Piano or the Casio CDP-120. These are fairly compact pianos, but that doesn't limit the breadth of their samples and sound settings.
Heavy metal bass players such as Geezer Butler (Black Sabbath), Alex Webster (Cannibal Corpse), Cliff Burton (Metallica), and Les Claypool (Primus, Blind Illusion) have used chime-like harmonics and rapid plucking techniques in their bass solos. Geddy Lee of Rush has made frequent use of bass solos, such as on the instrumental "YYZ". In both published Van Halen concert videos, Michael Anthony performs unique maneuvers and actions during his solos. Funk bassists such as Larry Graham began using slapping and popping techniques for their solos, which coupled a percussive thumb-slapping technique of the lower strings with an aggressive finger-snap of the higher strings, often in rhythmic alternation. The slapping and popping technique incorporates a large number of muted (or 'ghost' tones) to normal notes to add to the rhythmic effect. Slapping and popping solos were prominent in 1980s pop and R&B, and they are still used by some modern funk and Latin bands.
No matter which digital piano you choose, you're in for something special. The instruments found on these pages all offer different features, so take a few minutes to think about your needs as a musician and go from there. Whether you go with a higher-end stage piano like the top-selling KAWAI MP11 Professional Piano or a student model Yamaha's NP12 61-Key Entry-Level Piaggero Ultra-Portable Digital Piano, any digital pianos here will enhance your musical journey.