Though one of Russia’s most beloved composers was gay, it was the women in his life who helped nurture Tchaikovsky’s genius. — Votkinsk, Russia — 1847 Pyotr rubbed his hands together as hard as he could, hoping that maybe, just maybe, it would calm him a little. He did not want to tremble like a silly girl when it was his turn to perform. The cuts on his hands had almost healed, but one deep scar…