This fourth book of this series of 'Songs Without Words' consists of the following pieces:
 
No. 13 in Ab Major Approx duration: 4.30
No. 14 in Db Major Approx duration: 4.40
No. 15 in C Major Approx duration: 3.50
No. 16 in G Major Approx duration: 3.50 
 
These pieces are very melodic, continuing the type of piano music in the previous editions in this series.