Here's an example of an entry from Folktrax. Can anybody explain what it all means, and why part is bold and part is not?

BARD OF ARMAGH, THE - "O list to the strain of a poor Irish harper" - ROUD#2654 - HUGHES ICS 2 1914 p1 3v Co Tyrone -- tune used for UNFORTUNATE RAKE ("The Streets of Laredo") - BLANTYRE EXPLOSION (Jon Raven) -- Margaret BARRY (with tune hummed) rec by PK 19/8/56: FTX-071/ SAYDISC SDL-407 1994 - Story on 7"RTR-0600 (AL-71)/ ROUNDER 11661-1774-2 1998 - CLANCY Brothers & Tommy MAKEM: TRADITION TLP-1042 1961/ CBS 63249 1968 - THE FREEDOM FIGHTERS: PICKWICK Allegro ALL-869 1967