friendly towards creators of new music and preferred traditional popular music. They also suggested that music performed by acoustic musicians or solo artists in this manner would necessarily be folk music, a misconception that still commonly exists today. Some organizers have chosen the title "acoustic night" or "acoustic club" in an attempt to indicate an event run broadly on the lines of a folk club, but with a much wider range of musical styles. Open mic events are most commonly held in the middle of the week or at the very end of the weekend when footfall through venues is low. They rarely occur on the hallowed Friday and Saturday night time slots, when venues are busy with weekend customers and any live performances are professionals who have been booked. The most common night for an open mic in the United Kingdom is Thursday, with Wednesday in second place. The largest ongoing open mic-style music contest there is Open Mic UK, which regularly attracts 10,000 participants of all genres. The grand prize for the contest is an investment up to £30,000. The size of the event has necessitated that all participants sign up for performance slots beforehand, instead of simply walking onstage. A popular open mic arrangement in the United States is the "Blues Night". In this format, a bar or club will dedicate a particular night, usually in the middle of the week, as being "open mic blues night". The establishment may supply a house band, typically guitar, bass, and drums, and sometimes a keyboard. Singers, guitarists, and harmonica performers who wish to play sign up, usually with the host. This person is tasked with screening the performers, choosing and ordering, and getting the performers on and off stage in a polite manner. Since the songs chosen need to be simple enough so that a band of musicians who have not played together can perform them without practice, blues standards are used. Songs might be announced as a "12-bar fast shuffle in C" or "slow 12-bar blues in F", or similar phrases that should be familiar to all concerned. Lead singers, keyboards, horn players (usually saxophones), and various percussion instruments are common additions. Comedy Stand-up comedy open mic nights can be held at established comedy clubs but are more commonly held at other venues with or without a stage, often the upstairs or back room of a pub or