Editing Double bass (section)

===Informal training===
In other genres, such as blues, rockabilly, and psychobilly, the pedagogical systems and training sequences are not as formalized and institutionalized. There are not degrees in blues bass performance, or conservatories offering multiple-year diplomas in rockabilly bass. However, there are a range of books, playing methods, and, since the 1990s, instructional DVDs (e.g., on how to play rockabilly-style slap bass). As such, performers in these other genres tend to come from a variety of routes, including informal learning by using bass method books or DVDs, taking private lessons and coaching, and learning from records and CDs. In some cases, blues or rockabilly bassists may have obtained some initial training through the classical or jazz pedagogy systems (e.g., youth orchestra or high school big band). In genres such as tango, which use a lot of bowed passages and jazz-style pizzicato lines, the bassists tend to come from classical or jazz training routes.