when do cadenzas usually occur in solo concertos
Cadenza The term cadenza often refers to a portion of a concerto in which the orchestra stops playing, leaving the soloist to play alone in free time (without a strict, regular pulse) and can be written or improvised, depending on what the composer specifies. Sometimes, the cadenza will include small parts for other instruments besides the soloist; an example is in Sergei Rachmaninoff's Piano Concerto No. 3, where a solo flute, clarinet and horn are used over rippling arpeggios in the piano. The cadenza normally occurs near the end of the first movement, though it can be at any point in a concerto. An example is Tchaikovsky's First Piano Concerto, where in the first five minutes a cadenza is used. The cadenza is usually the most elaborate and virtuosic part that the solo instrument plays during the whole piece. At the end of the cadenza, the orchestra re-enters, and generally finishes off the movement on their own, or, less often, with the solo instrument.
Song structure Song structure or the musical forms of songs in traditional music and music are typically sectional, repeating forms used in songs, such as strophic form and is a part of the songwriting process. Other common forms include bar form, thirty-two-bar form, verse-chorus form, ternary form, strophic form, and the twelve-bar blues. Popular music songs traditionally use the same music for each verse or stanza of lyrics (as opposed to songs that are "through-composed"â€”an approach used in classical music art songs). Pop and traditional forms can be used even with songs that have structural differences in melodies.[clarification needed] The most common format in modern popular music is introduction (intro), verse, pre-chorus, chorus (or refrain), verse, pre-chorus, chorus, bridge ("middle eight"), verse, chorus and outro. In rock music styles, notably heavy metal music, there is usually a guitar solo in the song. In pop music, there may be a guitar solo, or the solo may be performed by a synthesizer player or sax player.