A four-piece kit extends the three-piece by adding one tom, either a second hanging tom mounted on the bass drum (a notable user is Chris Frantz of Talking Heads) and often displacing the cymbal, or by adding a floor tom. Normally another cymbal is added as well, so there are separate ride and crash cymbals, either on two stands, or the ride cymbal mounted on the bass drum to the player's right and the crash cymbal on a separate stand. The standard cymbal sizes are 16" crash and 18"–20" ride, with the 20" ride most common.
William F. Ludwig, Sr., and his brother, Theobald Ludwig, founded the Ludwig & Ludwig Co. in 1909 and patented the first commercially successful bass drum pedal system, paving the way for the modern drum kit. It was the golden age of drum building for many famous drum companies, with Ludwig introducing... "The ornately engraved" Black Beauty Brass Snare drum; Slingerland premiered its Radio King solid-maple shell; Leedy invented the floating drum head & self-aligning lug;& Gretsch originated the three-way tension system of the Gladstone snare drum". Wire brushes for use with drums and cymbals were introduced in 1912. The need for brushes arose due to the problem of the drum sound overshadowing the other instruments on stage. Drummers began using metal fly swatters to reduce the volume on stage next to the other acoustic instruments. Drummers could still play the rudimentary snare figures and grooves with brushes that they would normally play with drumsticks.
The keyboard action of an acoustic grand piano is composed of black and white keys, graded hammers, and numerous other components working in harmony when each note is pressed. This beautifully designed mechanism allows gifted pianists to express a wealth of feeling and emotion in their music, as they appreciate and respond to the tactile nuances transmitted through the keyboard.
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.
A number of accessories are designed for the bass drum (also called "kick drum"). Ported tubes for the bass drum are available to take advantage of the bass reflex speaker design, in which a tuned port (a hole and a carefully measured tube) are put in a speaker enclosure to improve the bass response at the lowest frequencies. Bass drumhead patches are available, which protect the drumhead from the impact of the felt beater. Bass drum pillows are fabric bags with filling or stuffing that can be used to alter the tone or resonance of the bass drum. A less expensive alternative to using a specialized bass drum pillow is to use an old sleeping bag.
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.