I have the audio volume lowered by default, so it might have been very quiet. There's a slider to increase it in the settings menu. I'm always afraid of deafening people with loud audio, lol. Thanks for playing!
I had a feeling the controls might trip people up, but the idea is to feel like you're rowing on the keyboard. I wish I had time to add a guide in the game. I did just add notifications for unlocked settings in case people miss them.