This thesis aims to investigate the information habits of peoplewith a serious interest in music. What information needs do theyexperience, what information sources do they seek out to fulfillthese needs and what part does the public libraries play in theirinformation habits?To answer these questions a qualitative approach was used. Fourrespondents with a serious interest in music were interviewed.The theoretic framework was based on Robert A. Stebbins theoryon serious leisure and Karen E. Pettigrew’s concept ofinformation grounds.The results of the study showed that the primary informationneeds consisted of: finding new music to listen to, findinginformation about artists and bands, finding information aboutopportunities to play live and finding information about musictechnology. The main information sources used were: friends andacquaintances and the internet. Additional sources like books andmagazines were also used to some extent. The findings show thatpublic libraries were used very moderately. When they on occasionwere used it was mainly to locate materials that could be hard tofind through other sources, for example sheet music. / Program: Bibliotekarie