If I understand you correctly - and that's a big "if" - you seem to be implying that they never used the name "Pink Floyd" without attaching the "Sound" suffix while "Tea Set" was still in use. But the band were always known as "the Pink Floyd", and "Sound" was just an optional add-on that disappeared around late 1966.

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what do you teach your children about me?
what do you teach your little children about me?
pimp, thug, bling drug lord of the undergrounded kings
how can you be so sure i won't call down the rain?
what do you teach your little children about me?
you point your gun, wait, hide and run. i see it plain