what are the meanings of the led zeppelin symbols
Their fourth album did not have a title, and sometimes referred to as "Four Symbols".
Led Zeppelin IV
Releasing the album without an official title has made it difficult to consistently identify. While most commonly called "Led Zeppelin IV", Atlantic Records catalogues have used the names "Four Symbols" and "The Fourth Album". It has also been referred to as "ZoSo" (which Page's symbol appears to spell), "Untitled", and "Runes". Page frequently refers to the album in interviews as "the fourth album" and "Led Zeppelin IV", and Plant thinks of it as "the fourth album, that's it". The original LP also has no text on the front or back cover, and lacks a catalogue number on the spine.
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Led Zeppelin IV [SEP] Title
Page thought, "We just happened to have a lot of faith in what we were doing." He recalled the record company were insisting that a title had to be on the album, but held his ground, as he felt it would be an answer to critics who could not review one Led Zeppelin album without point of reference to earlier ones. Releasing the album without an official title has made it difficult to consistently identify. While most commonly called "Led Zeppelin IV", Atlantic Records catalogues have used the names "Four Symbols" and "The Fourth Album". It has also been referred to as "ZoSo" (which Page's symbol appears to spell), "Untitled", and "Runes".