(the info linked to the Soul Jazz reissue from 2017 supplies a different release date) produced by Coxsone Dodd (Carlton Manning says that Dodd underpaid artists - he was also given £ 5 by Lee “Scratch” Perry in another context - see the interview below, causing him to move on).
On YouTube there are two versions of the song with this title that sound dramatically different; here is the second. I’m not sure if the difference in sound relates to different versions/recording sessions, or the way they’ve been uploaded online. The track’s muffled quality disappears in the second, which is a shame as this submerged quality is what distinguishes it and makes it so affecting.
Countless capital-R romantic Lovers rock songs, deep on melody were recorded in Jamaica in the 1960s on, but usually the tone of the songs is clear with the vocals the dominant element, just like a pop song. The tone shifting between upbeat, mournful or threatening (warning the departed lover how much she’ll miss him now she has left him) - think about the catalogue of Ken Boothe or Honey Boy.
In contrast, this song has such a dense sound with that over-exaggerated bassline taking prominence over the guitars, drums and pulsing with such an intensity. Basslines in dub are often key – exposed and allowed to be the sole element – but the way this song is recorded/mixed makes it sound as if the bass is distorted, it’s so prominent, relentless and constant. The contrast between it and the sweet vocals is really something.
Similarly, the track’s intensity comes from not only the bringing the vocals right at the top and the way they are recorded: Carlton Manning sings the beginning of each line alone, to be joined for the latter part by the other vocalists. This is strikingly different from many/most reggae songs, which depend on a call & response dynamic between the vocalists, where the singer is “met” by another voice, and often one of a contrasting character for contrast, effect and frequently humour. (This use of contrast between voices and parts continues on in hip-hop, of course).
To stay with the way the vocals come in so early, just before 15 seconds: this is the signature of other famous dub/reggae songs say The Congos’ “Fisherman” from Heart of the Congos, released in 1977 on Blood & Fire Records: