Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tangerine Dream 'Alpha Centauri'

This album, is in my opinion, an excellent sample of german rock and especially german rock psychedelia. The first track "Sunrise in the Third System" begins with bird-like sounds followed by the synthesizer sounds which are prevalent all through the album. "Alpha Centauri" can be characterised as a proto-electronica work, however there are flutes, guitars and percussion which provide in tracks 2 and 3 ("Fly and Collision of Comas Sola" and the title track "Alpha Centauri"), a more natural sound.The bonus track "Ultima Thule Part 1" is a very beautiful piece, more rock-oriented with clear influences, in my opinion from groups like King Crimson or Procol Harum.