J.S. Bach's Two Part Inventions is a collection of fifteen short keyboard works originally written as technical exercises for his students. They are contrapuntal pieces, with two voices of equal value but independent in contour and rhythm, unlike vertical pieces that employ melody, harmony, bass, etc. This marimba duet is an arrangement of three of these inventions. The two-part inventions included are No. 4 (D minor), No. 8 (F Major), and No. 13 (A minor). These medium advanced selections can be performed separately, or in succession in the order presented on a four octave and 4.3 octave (low A) marimba. Performing duets can be one of the most rewarding settings for mallet players, and these arrangements will surely be an easy hit with performers and audiences alike. This piece comes with a full, bound score and includes a CD-ROM containing an audio recording and all individual parts available for printing.