"Hagström - Everything in Music" is a documentary about Albin Hagström who, based on his love of music, built an international empire with manufacturing accordions, guitars and amplifiers. Hagström started a variety of music stores, music schools, and published booklets. The headquarters were located in the small village of Älvdalen, Sweden, but already in the 1930s Hagström had a branch in the Rockerfeller Center in Manhattan. Among Hagström's customers and friends were Jimi Hendrix, Carl Jularbo, Frank Zappa, ABBA, Owe Thörnqvist. Larry Coryell and many others.

Interviews with Eva Dahlgren, Esa-Pekka Salonen and Anders Hillborg are shown inbetween performances from their concert from Stockholm Central Station in the summer of 1995.