What is deference between Hamilton and musical theater singing?

In hamilton all they do is sing there is no script in other theater things most have a script

Sung through musicals have some spoken dialogue, but it's usually still included within the songs, so people kind of miss it. Laurens sings as Eliza and Hamilton have a spoken dialogue where she reads a letter revealing Laurens' death. The differences in these two genres are vast. The main one is that in a traditional art of opera, singers are not amplified. Opera singers train for years to be able to produce such powerful sounds that the audience in a big theater like the Metropolitan Opera can hear them. This in itself is incredible!