In the mid-1970s, Alembic and other boutique bass manufacturers, such as Tobias, produced four-string and five-string basses with a low "B" string. In 1975, bassist Anthony Jackson commissioned luthier Carl Thompson to build a six-string bass tuned (low to high) B0, E1, A1, D2, G2, C3. In comparison with a standard four-string bass, Jackson's six-string adds a low B string and a high C string. These 5 and 6-string "extended-range basses" would become popular with session bassists as they reduced the need for re-tuning to alternate detuned configurations like "drop D", and also allowed the bassist to play more notes from the same position on the fretboard with fewer shifts up and down the fingerboard, a crucial benefit for a session player sightreading basslines at a recording session.
At Sam Ash, we offer digital pianos for any type of budget. Premium models will offer features like weighted keys, LCD menus for simplified setup, and more after effects such as reverb. With weighted keys, the lower keys feel heavier and the higher keys feel lighter, just like you would find on acoustic models. Higher-end digital pianos will even offer keys made out of wood for a real premium response. Another specification to consider when it comes to choosing your piano is how many notes of polyphony is offered. Polyphony signifies the maximum number of notes that an instrument can produce at one time. If you are interested in layering notes, complex chords, and playing over accompaniment tracks, you should consider a model with higher polyphony. The amount of voices or different types of sounds and the quality of those sounds are also critical features that differentiate digital pianos. These days, most digital pianos offer more than just a traditional grand piano tone. Less expensive models will include four to five presets including strings, harpsichord, and drums. The top-of-the-line digital piano models can offer hundreds of different sounds spanning any genre of music you can think of. Other advanced features on today's best digital pianos include built-in recorders, compatibility with iOS apps for playing along with your favorite songs, and effects that simulate settings like lid positioning and performance venue. Be sure to check out our extensive Digital Piano Buyers Guide and our Digital Pianos: Everything You Need to Know article for further guidance on selecting the perfect digital piano for you.
Optical pickups are another type of non-magnetic pickup. They use an infrared LED to optically track the movement of the string, similar to the mechanism of modern computer mice, which allows them to reproduce low-frequency tones at high volumes without the "hum" or excessive resonance associated with conventional magnetic pickups. Since optical pickups do not pick up high frequencies or percussive sounds well, they are commonly paired with piezoelectric pickups to fill in the missing frequencies. LightWave Systems builds basses with optical pickups.
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]
In other less mainstream genres, such as hardcore punk or metal, the pedagogical systems and training sequences are typically not formalized and institutionalized. As such, many players learn by ear, by copying bass lines from records and CDs, and by playing in a number of bands. Even in non-mainstream styles, though, students may be able to take lessons from experts in these or other styles, adapting learned techniques to their own style. As well, there are a range of books, playing methods, and, since the 1990s, instructional DVDs (e.g., how to play metal bass). In the 2010s, many instructional videos are available online on video-sharing websites such as YouTube.
Maybe you're looking for something a bit more conspicuous, that you can make into the centerpiece of your music room? If so, you'll want to investigate options like the Yamaha Arius YDP-142 and Suzuki Micro Grand Digital Piano. These advanced instruments sound every bit as gorgeous as they look, and they offer the ability to record your and store your performances to listen again later or even to playback as accompaniments.