It is ironic that the biggest detriment to Mason Williams as a singer-songwriter is Mason Williams himself. I picked up this CD so that I could listen to "Classical Gas" whenever the mood struck me. The only other song I tend to listen to is "Baroque-A-Nova," probably because I remember having both songs on 45s in the olden days. There are a couple of other songs I like on the album, not when they are sung by Mason Williams, but rather when they are sung by the Smothers Brothers, for whom Williams was a major contributor. The Brothers Smothers recorded both "Long Time Blues" and the "Life Song," while Dick Smothers did an absolutely wonderful solo of "Wanderlove" on "The Smothers Brothers Play It Straight." There is also one song, "The Prince's Panties," which serves as a reminder that Williams wrote a lot of comic songs, which may well have been his true forte when lyrics were a part of the equation.
I think the rationale for my preference is threefold. First, Mason Williams does not have a distinguishable voice or a singer's feel for his own music, which may well be why his instrumental pieces are far and away his "biggest hits." Second, his songs seem to always work better when sung by more than one person, which is why they work so well for the Smothers Brothers (a good example would be a Williams song not on this album that the boys did called "The Three Song," just for the two of them). Third, producer Mike Post served neither the singer nor his songs well on this album. But if this is your one chance to have your own copy of "Classical Gas," then that is reason enough (Remember when the Smothers Brothers came back to TV and Williams played it on a clear guitar that had fishing swimming around inside?).