Before this trip, Tchaikovsky had spent considerable time corresponding with Rimsky-Korsakov, Glazunov and Lyadov, and during his visit, he spent much time in the company of these men.
Tchaikovsky had spent considerable time corresponding with Rimsky-Korsakov, Glazunov and Lyadov. This was before this trip. He spent much time in the company of these men. This was during his visit. This was before this trip.