Maybe you know where I can buy files (flac) of this album http://www.allmusic.com/album/improvisando-mw0001860524 ?
I would say buy it from Amazon, then get dbpoweramp and convert it to flac yourself.
( dbpoweramp.com )
I found it:
http://www.eclassical.com/labels/glossa/pandolfo-p-viola-da-gamba-music-improvisando.html
and how is the album?
I love it! 
You can preview it on the allmusic - link in the first post.
I initially was interested in this album as many people in a Russian-speaking forum use it as a reference album. However, I enjoy its music and sound.
What a great album! !5th century Renaissance jazz! 100% improv.
He studied with Jordi Savall and is superb on viola de gamba. I have some of his other recordings. I did not know of this one however.
Remarkably well thought out and played. Very, very nice recording. I am impressed with our Russian colleagues using a recording of harpsichord, organ, theorbo, vihuela, violone, and voice as a reference.
Thanks, Mikhail.
Elk, thank you for kind words! This recording tests our systems in various aspects with instrument separation and positioning during some complex passages.
Another great recording that I recently discovered is http://www.musicanuda.com. Great voice and interpretation of some well known tunes. http://www.6moons.com/musicreviews/2011_may/musicanuda.html
There is a well regarded amp designer on Russian forums, who dedicates his time to designing and building amps and cables with no restrictions. I wish I was able to visit him in Moscow. His mono-block is 500kg and people who heard it say it sounds like real life and there is no competition at any price. His philosophy is mostly about “unreasonably” unlimited power source. He is openly discussing his designs on the forums. Here is one of the threads: http://audioportal.su/showthread.php/4614-Система-Ю-А-Макарова I hope you can use a translator to read it. He takes his time to educate people and there is unbelievable amount of knowledge there.
I’ve got to second Elk’s enthusiasm and thanks, mikhail - this is a really fun, and very musically rewarding album. It just goes to show you how, out of a centuries old musical vocabulary completely new expression can arise. The recording is a delight too - they seem to have captured a sense of the freshness of the music without sacrificing any richness in tone and timbre.
I’ll get to your other links that you thoughtfully included in your reply to Elk.
My oh my…if the duet between the viola de gamba and the organ on ‘sopra l’antico canto de la Spagna’ doesn’t melt your heart and make you think of better things, I’d say you’d have to be dead, or should consider being so soon. It’s at about 2’ - 4’ and then especially 6’ - 8’30".
David said: It just goes to show you how, out of a centuries old musical vocabulary completely new expression can arise. The recording is a delight too - they seem to have captured a sense of the freshness of the music without sacrificing any richness in tone and timbre.
Excellent review.
It is worth also pointing out this is an album that will appeal to anyone. It is not for classical nerds, even though the instruments and techniques are that of early music.
Plus, the sound is excellent - with percussion, lows, highs, great stereo imaging, a tremdnous variety of instrumental sounds. A great test disc.
I really encourage everyone to take a listen to this one.
It’s also on The Classical Shop
http://www.theclassicalshop.net/Details.aspx?CatalogueNumber=G3%200409