Congratulations! Don't try to be too quiet now you have a baby. We had three. All of them are on their own now, but even when they were babies we played our music at the same volume as we did before we had them. Just put them in their crib and shut the door when they get sleepy, and you won't believe how well they sleep. People think you have to be quiet around babies costantly. That's a mistake, because then they wake up to everything that makes a sound. Hey, they love music too.
Again, CONGRATULATIONS!..... Just my opinion, but it worked.