At eighteen years , he began playing the trumpet and valve trombone in the brass band of Santa Clara .
Humble , dignified and courteous , Rubalcaba was a remarkable student and quickly became engrossed in his studies .
At eighteen years , Rubalcaba began playing the trumpet and valve trombone in the brass band of Santa Clara .
Humble , dignified and courteous , Rubalcaba was a remarkable student and quickly became engrossed in his studies .