Having significant difficulty with Bach's two part inventions for piano

1. How hard are Bach Two-Part inventions?
2. Are the Bach inventions hard?
3. What are Bach Two-Part inventions?

How hard are Bach Two-Part inventions?

The 2-part inventions are indeed difficult. You have to have complete independence of the hands and this requires a few months (dare I say "years") of preparation.

Are the Bach inventions hard?

Bach's inventions are solid early-advanced level pieces. They're written in two parts, which means each hand is playing a melody. These inventions are a great preparation for the more difficult Bach pieces that involve more than two voices (his fugues are in 3-4 parts).

What are Bach Two-Part inventions?

The Inventions and Sinfonias, BWV 772–801, also known as the Two- and Three-Part Inventions, are a collection of thirty short keyboard compositions by Johann Sebastian Bach (1685–1750): 15 inventions, which are two-part contrapuntal pieces, and 15 sinfonias, which are three-part contrapuntal pieces.