A sentimental ballad is an emotional style of music that often deals with romantic and intimate relationships, and to a lesser extent, loneliness, death, war, drug abuse, politics and religion, usually in a poignant but solemn manner. Ballads are generally melodic enough to get the listener's attention.
To emphasize the emotional aspect of a power ballad, crowds customarily hold up lighters adjusted to produce a large flame (or, as a more recent alternative, a turned-on smartphone screen or flashlight function).
"After the Ball", a ballad by Charles K. Harris, was the most successful song of its era, selling over two million copies of sheet music.
In 1962, Frank Sinatra released Sinatra and Strings, a set of standard ballads, which became one of the most critically acclaimed works of Sinatra's entire Reprise period.
Celine Dion's albums were generally constructed on the basis of melodramatic soft rock ballads, with sprinklings of uptempo pop and rare forays into other genres.
A synthesizer is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis and frequency modulation synthesis. These sounds may be altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically played with keyboards or controlled by sequencers, software or other instruments and may be synchronized to other equipment via MIDI.
Early Minimoog by R.A. Moog Inc. (c. 1970)
Robert Moog with Moog synthesizers. Many of Moog's inventions, such as voltage-controlled oscillators, became standard in synthesizers.
The Minimoog, introduced in 1970, was the first synthesizer sold in music stores.
The Yamaha DX7, released in 1983, was the first commercially successful digital synthesizer and was widely used in 1980s pop music.