Most jazz players do not use jazz band sheet music to play the tunes; most jazz bands typically perform in small piano bars, clubs, or ceremonies where tunes are usually requested and played mostly out of their knowledge and depending how the band has made the adaptation to match that tune.
Professional Jazz Bands
Professional bands that have their tunes already written down well before any performance takes place using jazz band sheet music; usually they do that while they practice or when they decide what tunes they will adopt as part of their repertoire.
Jazz band sheet music has to be written and read by professional musicians in order to understand it. You can get a desired jazz band sheet music on line as well on specialized sites. However, professional jazz bands have them written for them according to the way they adapt a given song or tune.
Music and Everyday Life
Music is a great part of your life, which affects it in a positive way even without us taking notice of it; while some people are totally addicted and cannot function without music somewhere in the background; some dont even realize that it can have a beneficial affect on them if they would take time and listen to it at times.
Those of us however, who have taken music to the next level and studied it to make a career out of it, simply cannot live without music in their lives. It is those people who only read music on sheet paper as that is the only way that it makes sense to them.
Every type of music is translated on music sheets in order for the musicians to follow it in a band or solo. Jazz band music sheet is just as important for the jazz players who are in a professional band or just conduct themselves in a more professional manner rather than the casual way which we are so used to with jazz music.
Jazz music is meant to be casual and relaxing; alleviating ones stress, making the atmosphere right for a romantic evening or even therapeutic at times. None of us quiet remember seeing jazz players using jazz music sheets in their performances; however, most of them do use jazz band music sheet especially if it is big band. Jazz music is great to listen to at any time; it has a great audience from all ages and groups. So even if you are not a musician and dont know much about music sheets or to use them, just put on some jazz music and see your worries melt away.