Hello
@Aynsley and friends here on this thread,
This afternoon, me too have been listening twice to this wonderful organ album,
Aeolian AEO-509 "Air for the Organ: LIEBESTER JESU" performed by
Genzo TAKEHISA with
my multichannel multi-amplifier audio system having L&R large-heavy sub-woofers; I was again much impressed by the heart-felt profound performance, the superb recording quality of rather quiet program with super-clear sound and extremely-high-S/N having preferable hall tone and reverberations.
All of the selection and settings of the microphones, digital recording setup, possibile sound mixing and editing, done by the recording engineer
Mr. Yukio Kojima, were just miracle as a whole, I believe.
I also visited
the web site of the recording venue "Fukushima Ongakudo Hall" to see the details of the Concert Hall and further information on the magnificent organ;
Then I quickly analyzed one track, track-2
"Herzlich Thut Mich Verlangen / JS Bach", by color spectrum analyzer of Adobe Audition 3.0.1;
As you can easily find, the lowest clear pipe sound is 37 Hz (I confirmed it by placing mouse cursor there and read the numeric info.) We can also see and very faintly hear the low gain sustaining hall (Helmholtz?) resonance/reverberation around 25 Hz -30 Hz which I found preferable, not uncomfortable at all, even needed for the nice reproduction of the hall tone.
Over all, this recording is wonderful and also a nice challenge to our audio system, especially sound cleanliness, S/N, and low-Fq clear reproduction by sub-woofers down to 25 Hz - 50 Hz with the lowest pipe of 37 Hz.
Since I do not use headphones at all, I do not know how properly your (HiFi?) headphone can reproduce the low sound in 25 Hz - 50 Hz zone, if you would enjoy the album with your headphones.