Of course it will have songs, and I personally loved it. It was different from conventional shonen meathead action. The story felt canon, although I doubt it is canon. It also revealed a lot of information on Shanks which is basically the second main driving force of the movie. Uta was a great new character added to the movie and scenes with her and luffy were always amazing. My personal favourite character from the movie was definitely BEPO and all the Shanks crewmembers. They were all great!
Overall, it had a good message, good action and great moments. The first half is kind of slow which was the only drawback in my opinion.
Overall, it had a good message, good action and great moments. The first half is kind of slow which was the only drawback in my opinion.