My recent review of Ibrahim Maalouf's "Diasporas", made me search for his father's Nassim Maalouf's "Improvisations Orientales" from 1994, the first solo trumpet CD with his quartertone trumpet, and of which I now found a copy. For this trumpet he added a fourth valve, half the length of the second valve, which is played by the index finger of his left hand. On this CD he demonstrates how Arabic scales or "maqamat" can be played with the trumpet. But the record brings more than just a demonstration. It brings music of a purity seldom heard.