The Austrian Civil Engineer Ernst Kubacsek was a close friend of our family. He was involved in the building of our home in Mexico, and later I worked with him when he opened his own construction firm. At the time when I composed this trio named in his honour, he played the clarinet, his wife, the Music Pedagogue Erika Kubacsek, the piano, and I, the violoncello. I wrote this piece in the hope to perform it together with the aforementioned persons, but it never came to that.

Fingering has been added to the violoncello part. On 4 March 2013 I visited Mr. Kubacsek in Mexico and learned from him that he plays the clarinet in Bb, Eb and A. The one in C is no longer in use nowadays. Therefore I included an Eb clarinet as an alternative, which also fits the tonality of the piece well.