The sound of electronic drums and cymbals themselves is heard by the drummer and possibly other musicians in close proximity, but even so, the foldback (audio monitor) system is usually fed from the electronic sounds rather than the live acoustic sounds. The drums can be heavily dampened (made to resonate less or subdue the sound), and their tuning and even quality is less critical in the latter scenario. In this way, much of the atmosphere of the live performance is retained in a large venue, but without some of the problems associated with purely microphone-amplified drums. Triggers and sensors can also be used in conjunction with conventional or built-in microphones. If some components of a kit prove more difficult to "mike" than others (e.g., an excessively "boomy" low tom), triggers may be used on only the more difficult instruments, balancing out a drummer's/band's sound in the mix.
Types of bass lines vary widely, depending on musical style. However, the bass guitarist generally fulfills a similar role: anchoring the harmonic framework (often by emphasizing the roots of the chord progression) and laying down the beat in collaboration with the drummer and other rhythm section instruments. The importance of the bass guitarist and the bass line varies in different styles of music. In some pop styles, such as 1980s-era pop and musical theater, the bass sometimes plays a relatively simple part as the music emphasizes vocals and melody instruments. In contrast, in reggae, funk, or hip-hop, entire songs may center on the bass groove, and the bass line is usually prominent in the mix.
Trigger sensors are most commonly used to replace the acoustic drum sounds, but they can often also be used effectively with an acoustic kit to augment or supplement an instrument's sound for the needs of the session or show. For example, in a live performance in a difficult acoustical space, a trigger may be placed on each drum or cymbal, and used to trigger a similar sound on a drum module. These sounds are then amplified through the PA system so the audience can hear them, and they can be amplified to any level without the risks of audio feedback or bleed problems associated with microphones and PAs in certain settings.
The fretting hand can add vibrato to a plucked or picked note, either a gentle, narrow vibrato or a more exaggerated, wide vibrato with bigger pitch variations. For fretted basses, vibrato is always an alternation between the pitch of the note and a slightly higher pitch. For fretless basses, the player can use this style of vibrato, or they can alternate between the note and a slightly lower pitch, as is done with the double bass and on other unfretted stringed instruments. While vibrato is mostly done on "stopped" notes—that is, notes that are pressed down on the fingerboard—open strings can also be vibratoed by pressing down on the string behind the nut. As well, the fretting hand can be used to "bend" a plucked or picked note up in pitch, by pushing or pulling the string so that the note sounds at a higher pitch. To create the opposite effect, a "bend down", the string is pushed to a higher pitch before being plucked or picked and then allowed to fall to the lower, regular pitch after it is sounded. Though rare, some bassists may use a tremolo bar-equipped bass to produce the same effect.
I brought in several other pianists for our test panel. Liz Kinnon is a pianist/arranger/composer/educator from Los Angeles who has performed with artists such as Dizzy Gillespie and Andy Williams. She was an orchestrator on the animated shows Animaniacs, Pinky and the Brain, and Histeria. At the Colburn Community School of Performing Arts in Los Angeles, she teaches jazz piano and is the Director of Adult Jazz Combos. She was Ryan Gosling’s piano coach for La La Land and recently worked with Simon Pegg and Juno Temple for the film Lost Transmissions.
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The Alesis Recital Pro is $100 less expensive than our runner-up, but it doesn’t sound that way. The built-in sounds are good, and with its touch buttons and LCD readout, the keyboard is the easiest and most intuitive to use of our picks. It doesn’t come with a sustain pedal, so it will require an extra purchase of about $20 to make it fully functional. Although it doesn’t sound quite as good or play quite as well as our main pick, it’s clearly the standout value.
A trigger pad could contain up to four independent sensors, each of them capable of sending information describing the timing and dynamic intensity of a stroke to the drum module/brain. A circular drum pad may have only one sensor for triggering, but a 2016-era cymbal-shaped rubber pad/cymbal will often contain two; one for the body and one for the bell at the centre of the cymbal, and perhaps a cymbal choke trigger, to allow drummers to produce this effect.
Traditional digital pianos vaguely resemble an electronic organ or a spinet harpsichord but usually lacking a fully enclosed lower section, while some models are based on the casework of traditional upright pianos with a fully enclosed bottom part and pedals that look like actual piano pedals. An opposite and recent trend is to produce an instrument which has a unique and distinctive appearance, unobtainable with a conventional instrument. Yamaha , Kawai and Casio makes a model which is designed to stand against a wall and is far shallower from keyboard to back than any possible upright design, as well as shorter height.
Trigger pads and drums, on the other hand, when deployed in a conventional set-up, are most commonly used to produce sounds not possible with an acoustic kit, or at least not with what is available. Any sound that can be sampled/recorded can be played when the pad is struck, by assigning the recorded sounds to specific triggers . Recordings or samples of barking dogs, sirens, breaking glass and stereo recordings of aircraft taking off and landing have all been used. Along with the more obvious electronically generated sounds there are synthesized human voices or song parts or even movie audio or digital video/pictures that (depending on device used) can also be played/triggered by electronic drums.
If the toms are omitted completely, or the bass drum is replaced by a pedal-operated beater on the bottom skin of a floor tom and the hanging toms omitted, the result is a two-piece "cocktail" (lounge) kit. Such kits are particularly favoured in musical genres such as trad jazz, rockabilly and jump blues. Some rockabilly kits and beginners kits for very young players omit the hi-hat stand. In rockabilly, this allows the drummer to play standing rather than seated.
Much the same considerations apply to bass drum pedals and the stool, but these are not always considered breakables, particularly if changeover time between bands is very limited. Swapping the snare drum in a standard kit can be done very quickly. Replacing cymbals on stands takes longer, particularly if there are many of them, and cymbals are easily damaged by incorrect mounting, so many drummers prefer to bring their own cymbal stands.
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.