So, you want to be a piano technician: Can you hear the necessary things? (1)

Brahms Piano Concerto No. 2.

Excerpt from the first movement.

Major conductor, orchestra, pianist and record label.

Something is amiss.

Listen carefully.

Can you hear it?

What's the problem?

(Note: The problem may also be heard clearly on the CD as well as the original Stereo LP.)

So you want to be a piano technician, PART 2 is here:

So, you want to be a piano technician PART 2



Link to the discussion on part 1 and the identity of the recording is here:

Piano World Tuner-Technician Forum