overdubs

/OW1 V ER0 D AH1 B Z/
noun
  1. 1

    (sound engineering) An overdubbed part.

    โ€œThe rhythm guitar part is live, but the solo is an overdub.โ€

verb
  1. 1

    (sound engineering) To record a part along with an already recorded part or parts.

    โ€œThe rhythm guitar part is live, but the solo was overdubbed.โ€

Source: https://en.wiktionary.org/wiki/overdub, https://en.wiktionary.org/wiki/overdubs