Question

What is it called when a song gets higher and higher

Answer 1

When a song gradually increases in pitch or intensity, it is often referred to as a "crescendo." If it involves a series of notes that move higher in pitch, it can also be called a "rising melody" or "ascending progression." Additionally, if the song builds up in energy along with the pitch, it may be described as "building" or "escalating." In some contexts, especially in pop music, it can also be termed a "key change" if the entire song shifts to a higher key.