By far the least prolific songwriter of the original Wailers trio (with Bob Marley and Peter Tosh), Bunny nevertheless began his solo career with an album that equalled any album by Marley or Tosh - it's a shame he never managed to make another one as good as this.
Blackheart Man is a gentle record and where Bunny has a militant message he makes his point far less stridently than Peter Tosh would have done. While it is steeped in Rastafarianism, it largely eschews the roots-by-numbers lyrics that are particularly prevalent both in modern roots reggae and to a lesser extent during the 1970s - he actually has something to say, and a gorgeous melody to sing it to.
It's hard to single out the best tracks as the overall standard is very consistent, but the upful Bide Up, the gently militant Fighting Against Conviction, the beautiful title track and the amazing adaptation of the old gospel song This Train are all superb and they're not the only ones.
If you like Bob Marley's more reflective and tuneful material, you'll like this, if you already have a lot of roots reggae and haven't heard this then I guarantee it's better than nearly anything else you'll hear in the genre.