“Köhler - Op. 162, No. 13” is a very short one-page piano study in C major. The piece is built from a simple right-hand quarter-note melody above long sustained left-hand tones. Instead of focusing on speed or dramatic expression, this study teaches basic coordination, steady counting, smooth phrase connection, and careful listening between a moving upper line and a held lower harmony.

Measures 1–2 introduce the main pattern. The right hand plays a simple stepwise melody in quarter notes, while the left hand holds long tones underneath. The long slur in the lower staff connects the harmony across the phrase, helping the music feel smooth and sustained.

Measures 3–4 repeat the same basic idea in a slightly different position. The right hand continues the steady quarter-note motion, while the left hand again holds a long supporting sonority. The texture stays very plain, making the piece useful for practicing even rhythm and controlled hand balance.

Measures 5–6 return to the opening-style pattern. The right hand moves through another simple melodic shape, while the left hand provides the same kind of slow harmonic support. The repeated design helps beginner students recognize familiar note patterns rather than reading completely new material every measure.

Measures 7–8 close the study with a final balanced phrase. The right hand finishes with a short melodic motion into a held note, while the left hand settles underneath with sustained tones. The ending is simple and stable, giving the miniature a clear C major close.

Interesting fact: Louis Köhler wrote many short teaching pieces for young pianists, and this study shows how even a tiny piece can focus on one important skill. Here, the main lesson is not virtuosity, but learning to keep a steady right-hand line while the left hand holds long notes quietly and evenly.