First thing to say that this album is very much a must for fans of progressive rock of the 1970s. Heritage shows a mass influence to this era of music an influence to Rush, Led Zeppelin and Deep Purple can be heard throughout. The guitar playing on Slither is reminiscent of Led Zeppelin's Babe I'm Gonna Leave You and Per Wiberg's keyboard and mellotron playing often has a familiarity to the kind of keys heard in Deep Purple's Speed King or Child in Time.
This progressive style is very much laid back and relaxing but very emotionally demanding. Much of the music carries a feeling of tragedy and despair within it's mellowness which is very gripping, while much of the guitar playing conducts much awe and grandness, notably the guitar solo heard in Nepenthe. The relaxed jazz inspired sections are often eerie and melancholic. And so in terms of emotional dwelling, Heritage sets out to do Opeth's frequent goal and make listeners feel a little colder inside.
However, there is a point to be made about Heritage and it is a big one. There is a crucial element that is missing on the album and that is the brutal and hard hitting death metal that Opeth's fans have come to love over the years. Now, granted this album isn't the first time Opeth have made an album not to feature any elements of death metal. 2004's Damnation was a critically acclaimed piece of work, however, Damnation was an album that served as a partner album to 2002's Deliverance. Between the release of 2008's Watershed and Heritage, frontman