It wasn't only the arrangement of the instrumentation which grabbed my attention here... The tranquil atmosphere from start to finish is so soothing and is bound to evoke a calm headspace.
Overall "Circle22" has quite a minimalist stature to it with the beefy bass and the drums making up the foundation. The arrival of the vibraphone/mallet definitely sets the track apart from most chillhop tracks you'll come across as it breathes new life into the arrangement.