Since 2011 German bass luthier Warwick built several fretless Thumb NT 7 basses for Jeroen Paul Thesseling, featuring a 34-inch (864 mm) scale with subcontra tuning F♯–B–E–A–D–G–C . Yves Carbonne developed ten- and twelve-string fretless subbass guitars. In 2017 a 13 string bass tuned Ab00–Gb–Db–B–E–A–D–G–C–F–Bb–Eb–Ab4 was built by Prometeus guitars giving the fullest range to a string instrument allowable by current string technology.
In piano lingo, “action” describes the way the piano keys feel when you press on them. With a digital piano, the closer the action is to that of an acoustic piano, the better. Semi-weighted action uses a spring to create the resistance felt when pressing a key and its rebound when you lift your finger. Hammer action uses a hammer mechanism like that found in an acoustic piano to replicate the feel. Graded, or progressive, hammer action takes that a step further by increasing the weight of the action as you descend to the lower notes on the keyboard. Using a keyboard with weighted action is beneficial for multiple reasons. It helps build finger strength while practicing (a spring-based action will only minimally address this), and it allows for more variation and musicality in the way you play a note. While a piano keyboard might look like nothing more than a bunch of on/off switches, in reality there’s a range of volumes and timbres that can be achieved depending on how quickly or strongly you depress the keys. Hammer action best replicates those possibilities.
A midi controller does not have any sounds of its own. It requires a virtual instrument (as a trigger) to produce sounds. So, if you get an acoustic piano virtual instrument, your midi controller will be an acoustic piano. If your virtual instrument is a drum, violin, electric piano etc., your midi controller will be exactly those instruments because it takes its tone from the virtual instrument.
First and foremost, it's hard to go wrong with the classics. Fender can definitely take the credit for making the bass guitar the instrument it is today, and with a Precision Bass or Jazz Bass from Fender or Squier, you can experience the sound and feel that laid the groundwork for all others. Of course, what those others have done with the bass guitar is nothing short of amazing, and you'll also find plenty of artisan axes here from the likes of Schecter, Rickenbacker, Warwick and more. The bottom line is choice: there's a bass to satisfy any player.
Some basses, particularly expensive boutique instruments or custom-made guitars, use more unusual pickup configurations. Examples include a soapbar and a "P" pickup (found on some Fender basses), bassist Stu Hamm's "Urge" basses, which have a "P" pickup sandwiched between two "J" pickups, and some of funk bassist Bootsy Collins' custom basses, which had as many as five J pickups. Another unusual pickup configuration is found on some of the custom basses that virtuoso bassist Billy Sheehan uses, in which there is one humbucker at the neck and a split-coil pickup at the middle position.
There are several reasons for this division. When more than one band plays in a single performance, the drum kit is often considered part of the backline (the key rhythm section equipment that stays on stage all night, which often also includes bass amps and a stage piano), and is shared between/among the drummers. Oftentimes, the main "headlining" act will provide the drums, as they are being paid more, possibly have the better gear, and in any case have the prerogative of using their own. Sticks, snare drum and cymbals, and sometimes other components, are commonly swapped though, each drummer bringing their own. The term breakables in this context refers to whatever basic components the "guest" drummer is expected to bring. Similar considerations apply if using a "house kit" (a drum kit owned by the venue, which is rare), even if there is only one band at the performance.
Eight and twelve-string models are both built on the same "course string" concept found on twelve-string guitars, where sets of strings are spaced together in groups of two or three that are primarily played simultaneously. These instruments typically have one of the strings in each course tuned an octave above the 'standard' string, although a fifth above is also used. Instruments with ten and fifteen strings, grouped in five courses, also exist, as do "extended-range basses" or ERBs with non-coursed string counts rivaling those of coursed-string basses.
Palm-muting is a widely used bass technique. The outer edge of the palm of the picking hand is rested on the bridge while picking, and "mutes" the strings, shortening the sustain time. The harder the palm presses, or the more string area that is contacted by the palm, the shorter the string's sustain. The sustain of the picked note can be varied for each note or phrase. The shorter sustain of a muted note on an electric bass can be used to imitate the shorter sustain and character of an upright bass. Palm-muting is commonly done while using a pick, but can also be done without a pick, as when doing down-strokes with the thumb.
In the 1980s and beyond, electric bass was used in works by Hans Werner Henze (El Rey de Harlem, 1980; and Il ritorno d'Ulisse in patria, 1981), Harold Shapero, On Green Mountain (Chaconne after Monteverdi), 1957, orchestrated 1981; Alfred Schnittke's Symphony No. 3 (1981); Steve Reich's Electric Counterpoint (1987) and 2x5 (2008), Wolfgang Rihm (Die Eroberung von Mexico, 1987–91), Arvo Pärt (Miserere, 1989/92), Steve Martland (Dance works, 1993; and Horses of Instruction, 1994), Sofia Gubaidulina (Aus dem Stundenbuch, 1991), Giya Kancheli (Wingless, 1993), John Adams (I Was Looking at the Ceiling and Then I Saw the Sky, 1995; and Scratchband, 1996/97), Michael Nyman (various works for the Michael Nyman Band), Mark-Anthony Turnage (Blood on the Floor, 1993–1996), numerous works by Art Jarvinen.
Instruments handmade by highly skilled luthiers are becoming increasingly available in the 2010s. Exotic materials in high-end instruments include woods such as bubinga, wenge, ovangkol, ebony, and goncalo alves. Some makers use graphite composite to make lightweight necks More expensive basses often feature exotic woods. For example, Alembic uses cocobolo as a body or top layer material because of its attractive grain. Warwick bass guitars are well known for exotic hardwoods, making most necks out of ovangkol, and fingerboards from wenge or ebony. Some makers use solid bubinga bodies for their tonal and aesthetic qualities.
A well-known bass humbucker is the pickup used on the Music Man series of basses; it has two coils, each with four large polepieces. This style is known as the "MM" pickup for this reason, and many aftermarket pickup manufacturers (companies that make and sell pickups that you can custom-add to your bass) and custom bass builders incorporate these pickups in their designs. The most common configurations are a single pickup at the bridge, two pickups similar in placement to a Jazz Bass, or an MM pickup at the bridge with a single-coil pickup (often a "J") at the neck. These pickups can often be "tapped", meaning one of the two coils can be essentially turned off, giving a sound similar to a single-coil pickup.
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 general, the sounds produced by a digital piano are based on sampling, by which real piano sound samples are stored in ROM. The samples stored in digital pianos are usually of very precision recording and made using high-quality pianos, expensive microphones, and high-quality preamps in a professional recording studio. ROM may include multiple samples for the same keystroke, attempting to reproduce diversity observed on the real piano, but the number of these recorded alternatives is limited.
Piccolo basses are cosmetically similar to a four-stringed electric bass guitar, but usually tuned one whole octave higher than a normal bass. The first electric piccolo bass was constructed by luthier Carl Thompson for Stanley Clarke. To allow for the raised tuning, the strings are thinner, and the length of the neck (the scale) may be shorter. Several companies manufacture piccolo sets that can be put on any regular bass, thereby converting any bass into a piccolo bass. Because of the thinner strings, a new nut may be required to hold the strings. Some people prefer a slightly shorter scale, such as 30 or 28 inches (762 or 711 mm), as the higher tension required for longer scale lengths coupled with the thinner gauge of higher-pitched strings can make a long-scale piccolo bass difficult to play. The tuning varies with the personal tastes of the artist, as does the number of strings. Joey DeMaio from the heavy metal band Manowar plays with four strings on his piccolo bass. Jazz bassist John Patitucci used a six-string piccolo bass, unaccompanied, on his song "Sachi's Eyes" on his album One More Angel. Michael Manring has used a five-string piccolo bass in several altered tunings. Michael uses D'Addario EXL 280 piccolo bass strings on his four-string hyperbass, made by Zon Guitars.
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.