A Musical Logo

I came across the new logo for the Philadelphia Orchestra which immediately caught my eye. Compared to the previous logo, I thought it improved greatly. It is simple but has a clear idea.

The image on the left (the old logo) is plain and bland. I don't see how it represents an orchestra at all. There is no image in the logo depicting something musical and I don't know what the half of circle design is supposed to represent.
I think the new logo is creative in incorporating the musical symbol into the P, clearly representing Philadelphia. On the Internet, it seemed that some people thought the text around the P was too small in comparison to the large P. However, I think I disagree because the large size of the P with its design will already make people notice the logo and recognize it must be for something musical. Then, after their attention is caught, they will look closer to see the what exactly the logo is for. I think the idea behind it really works.