If you're looking at this review, it is most likely you're familiar with the title track, The Zephyr Song, but are more interested in picking up the b-sides. If this is the case, keep in mind that this is a two-part release on two different singles. Total b-sides: 4 - Body of Water, Someone, Out of Range and Rivers of Avalon.
Unfortunately, when these two singles were printed, the b-sides got mixed up and DO NOT MATCH the CD inserts. Therefore Part 1 lists Body of Water and Someone but the matching CD actually contains Out of Range and Rivers of Avalon. This is reversed with Part 2, listing Out of Range and Rivers of Avalon, but actually contains Body of Water and Someone.
For song hunters I recommend both to anyone interested in completed their Red Hot Chili Peppers b-sides from By The Way.
Body of Water is a high energy rock song, far more rock than funk. Sounds like the recording is a little tweaked with some digital distortion, but it's not overly displeasing.
Someone is a much softer song, almost a Chili Peppers lullaby, very pretty, slow with minimal drums and heavy guitar delays.
Out of Range has a slower funk/rock sound, really awesome key changes and guitar licks on breaks and fills.
Rivers of Avalon is another fast paced rock song with lush vocals and bright background melodies.
Great songs, just make sure you know which you're buying. The songs can be found on mp3 and torrent sites, but the best quality you'll find is from these singles. Good luck and make sure you know what you're getting (and sellers, make sure you know what you're selling).