In most implementations, a digital piano produces a variety of piano timbres and usually other sounds as well. For example, a digital piano may have settings for a concert grand piano, an upright piano, a tack piano, and various electric pianos such as the Fender Rhodes, the Wurlitzer, and the DX electric piano. Some digital pianos incorporate other basic "synthesizer" sounds such as string ensemble, for example, and offer settings to combine them with piano.
Once the basic parameters were established, I reached out to colleagues who are piano teachers or musical directors to get a sense of what models were in highest rotation in the professional world. I also played several models at the National Association of Music Merchants (NAMM) show in January. From there I searched through Amazon, Musician’s Friend, and Sweetwater for available models, then cross-checked that information with manufacturer websites and added anything that was missing. After considering all that information, I decided to limit the price to $500. That was high enough to include several quality-built keyboards that met all (or most) of the criteria without being too pricey. This gave me a list of 21 models from nine different companies.
Bassists often play a bass line composed by an arranger, songwriter or composer of a song—or, in the case of a cover song, the bass line from the original. In other bands—e.g., jazz-rock bands that play from lead sheets and country bands using the Nashville number system—bassists are expected to improvise or prepare their own part to fit the song's chord progression and rhythmic style.
The hi-hat cymbals (nicknamed "hats") consist of two cymbals mounted facing each other on a metal pole with folding support legs that keep a hollow support cylinder standing up. Like the bass drum, the hi-hat has a foot pedal. The bottom cymbal is fixed in place. The top cymbal is mounted on a thin pole which is inserted into the hollow cymbal stand cylinder. The thin pole is connected to a foot pedal. When the foot pedal is pressed down, a mechanism causes the thin pole to move down, causing the cymbals to move together. When the foot is lifted off the pedal, the cymbals move apart, due to the pedal's spring-loaded mechanism. The hi-hats can be sounded by striking the cymbals with one or two sticks or just by opening and closing the cymbals with the footpedal, without striking the cymbals. The ability to create rhythms on the hi-hats with the foot alone enables drummers to use both sticks on other drums or cymbals. Different sounds can be created by striking "open hi-hats" (without the pedal depressed, which creates a noisy sound nicknamed "sloppy hats") or a crisp "closed hi-hats" sound (with the pedal pressed down). As well, the high hats can be played with a partially depressed pedal.
The slap and pop method, or "thumbstyle", most associated with funk, uses tones and percussive sounds achieved by striking, thumping, or "slapping" a string with the thumb and snapping (or "popping") a string or strings with the index or middle fingers. Bassists often interpolate left hand-muted "ghost notes" between the slaps and pops to achieve a rapid percussive effect, and after a note is slapped or popped, the fretting hand may cause other notes to sound by using "hammer-ons", "pull-offs", or a left-hand glissando (slide). Larry Graham of Sly and the Family Stone and Graham Central Station was an early innovator of the slap style, and Louis Johnson of The Brothers Johnson is also credited as an early slap bass player.