UMUR "Furtive Pearl" is the debut full-length studio album by Danish jazz-rock act Secret Oyster. The album was released through CBS Records in November 1973. Secret Oyster was formed by former members of the acts Burnin´Red Ivanhoe, Coronarias Dans and Hurdy Gurdy, so we´re taking seasoned and quite prolific Danish musicians.

The band play a jamming type of instrumental jazz-rock on this album albeit with strong and memorable themes which provide some hooks to hold on to. The themes are querky and with the driving rocking type drumming on the album I´m reminded a lot of late sixties Frank Zappa and The Mothers of Invention. The high level of musicianship on display on "Furtive Pearl" is also equal to the high level musicianship of that band. The prominent instruments on the album are guitar, organ/electric piano and alto/soprano saxes. The latter mentioned are played by Karsten Vogel who is known for his work with Burnin´Red Ivanhoe. As mentioned the drums keep a steady driving beat throughout most of the album but there are some variation to be found in "Vive La Quelle?", which features a drum solo. The bass playing is also quite prominent and nicely organic.

There´s no questioning the fact that "Furtive Pearl" is a high quality jazz-rock album, but personally I could have done without the most noodling jamming solo parts as I definitely enjoy the music most when those delightfully querky themes are played, but that´s most likely an aquired taste and a 3.5 - 4 star (75%) rating is still warranted.