The chart shows information relating to UK music sales from 1990 to 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

The presented chart gives data about four types of music, that were sold throughout thirty years. Units are measured in pounds sterling. Generally speaking, digital or downloaded music were in high demand by the year 2020, meanwhile Cassettes sales were minimum almost all the time. Now, turning to the details, although digital or downloaded music […]