Stanislaw Lem’s 1968 His Master’s Voice (Głos Pana) is a stand-alone first-contact novel. The 1983 English edition is by Michael Kandel.
His Master’s Voice is Professor Peter E. Hogarth’s posthumously-published account of the His Master’s Voice (HMV) project. Neutrino-based telescopy offered the chance to unravel nature’s secrets. Alien signals were an unexpected bonus. Mathematician Hogarth was merely one of many experts recruited to decipher the message.