Types Tutorial Exercise 4 ​

bash
2:  0@ 47' 26"              1:  0@ 2' 47.411765"
1:  17                          .
    .

    0@ 47' 26" RET 17           /

The average song length is two minutes and 47.4 seconds.

bash
2:  0@ 2' 47.411765"     1:  0@ 3' 7.411765"    1:  0@ 53' 6.000005"
1:  0@ 0' 20"                .                      .
    .

    20"                      +                      17 *

The album would be 53 minutes and 6 seconds long.