> It works less well when the "songs" are 45 minutes long
The pieces on streaming services (just like CDs) are not 45 minutes long, though. They're separated into movements that are typically between 4 and 10 minutes long. So, while you could listen to all of the Rite of Spring if you want for its entire 40 minute runtime (and I do a lot, as it's my favorite orchestral work), you usually don't. You might listen to only the Introduction to The Sacrifice, which is only about 4-5 minutes.
In fairness, while the 45 minute mark is rarely hit in a single movement, 15-20 minutes is the length of the opening movement of most symphonies from Beethoven and later. And many other single movements out there.
The pieces on streaming services (just like CDs) are not 45 minutes long, though. They're separated into movements that are typically between 4 and 10 minutes long. So, while you could listen to all of the Rite of Spring if you want for its entire 40 minute runtime (and I do a lot, as it's my favorite orchestral work), you usually don't. You might listen to only the Introduction to The Sacrifice, which is only about 4-5 minutes.