Clear piano notes, first and foremost.
Any smear or loss of speed (a problem with hi-fi equipment since the beginning of time) detracts from the fun.
Next, the tonality of the best copies is rich and solid. Accept nothing less.
And, finally, the proper reproduction of the percussion instruments is critically important to the energy and drive of the music. The better you hear them — without losing the weight and richness of the piano — the more you will enjoy your copy of the record.
No two copies will reproduce all these elements equally well. On high quality equipment with the volume turned up good and loud the winners are easily separated from the losers. (more…)
What to Listen For – Smear

