Dennis secret lies partly in the limitations of his medium: He's just a moderate pianist, and his limited voice is pulled through alcohol and drug excesses affected.
But it is precisely these limitations enable him apparently to deal on the essence of his music: The presentation of basic human emotions like sadness, fear, hope and love.
The Legacy Edition is now available and the remaining unfinished album fragment "Bamboo", which inferior to "Pacific Ocean Blue" in hardly anything.
The "Rolling Stone" rated "POB" even as one of the major "forgotten" (because no longer available) albums. On record fairs this rarity was traded to huge sums. Thanks to Sony / BMG that finally there is this official edition, which keeps the memory alive of the second genius of the Beach Boys!