The invention has been transposed to the key of G. The guitar as a transposing instrument sounds an octave lower than written. TAB scores are also available. Accompaniments are in place allowing guitarists to participate in ensemble activities as part of their practice routines. Guitar 1 sounds on one side of the stereo channel and Guitar 2 of the other. A legato approach to playing is suggested for this invention. It is a movement that features figuration and an exploration of shapes rather than ornamentation. The two voices are frequently moving in contrary motion. This invention sounds so easy on the ear but it is a challenging to read because of the accidentals. The realisation plays back at 25 dotted quarter note or dotted crotchet beats to the minute. The repeats whilst indicated in the sheet music score are not played in the mp3 realisation or the accompaniments The reading of the notes and accidentals requires attention especially in the second section and note values need to played accurately. The principle behind J. S. Bach’s two part inventions is to take a musical idea or motive and then process it following the rules of good contrapuntal writing using the compositional processes of the baroque and at the same time referencing the closely related keys in the journey. Inversion, repetition, sequence, transposition, rhythmic augmentation/diminution amongst processes are evident in Bach’s inventions as most other music of the baroque period. J. S. Bach composed 15 Two Part Inventions and 15 Three part Sinfonias and many of them provide excellent opportunities for duo and trio playing. When played in an ensemble context there is not much other music that can better prepare players for this type of music activity.
