I don't know much about Jazz but I do like .......... Grant Green's Idle Moments

Released in 1963 and full of Green's tasty and tasteful guitar Idle Moment's 4 tracks make some gentle but still absorbing early morning or late night music.  The title track was supposed to be only about 7 minutes long but the band apparently just got into a groove and it ended up 15 minutes.  They then cut a 7 minute version but it did not have the same feel.  The was also noteworthy as one of Joe Henderson's first album appearances.