2006 is an album released in 2004 (see 2004 in music) by Manfred Mann with Manfred Mann's Earth Band. Manfred Mann preferred to point out that this is rather his solo album. His explanation for this is given in the sleeve notes where he says that some of the tracks ('Mars' 'Two Friends' 'Two Brides' ' Slave' 'Frog' and 'Get Me Out Of This') were recorded in a more unrehearsed and experimental way than the others. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Album