Complex sentence: However, many compositions that were featured throughout the trilogy's story modes yet were left out of the previous soundtrack were still overlooked, prompting many disappointed fans to rip copies of the tracks straight from the game itself.
Split into simpler sentences: However, many compositions that were featured throughout trilogy's story modes which were left out of the previous soundtrack were also overlooked. Which many fans have found disappointing prompting many to rip copies of the tracks straight from the game itself.