Bach, Johann Sebastian: Two Part Inventions

All piano students are familiar with Bachs two-part Inventions but virtuosos of the keyboard also keep coming back to these timelessly beautiful but by no means easy works. It is hard to believe what Bach was able to express using only two parts! In his famous preface the composer himself calls the work an Instruction which teaches students and keyboard lovers to treat correctly several parts, to achieve a singing style in playing and to acquire a strong foretaste of composition.