These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Safe As Milk would qualify. While it's nowhere near the experimentation he would pioneer in later albums, it's still got some good music in the form of "Zig Zag Wanderer", "Dropout Boogie", "Electricity", and "Abba Zabba".
Probably any fan of any artist would say 'all of it', but almost every album Beefheart made was filled with completely original and wonderful songs that drew rave reviews and critical acclaim; all except his two 'Tragic Band' albums, which still have one or two good songs...
Faux Symbolism: Whether this is intentional or not depends on who was was giving the particular explanation of the "symbolism", and when (Van Vliet tended to change his stories practically every time he was interviewed).