According to wikipedia Adagio means:
Adagio – slow and stately (literally, "at ease") (66–76 bpm)
In Shumann's "Grosse Sonate" op. 11, the tempo marking is "Un poco adagio" :
what does this mean? According to Glossary of musical terminology "Un poco" means
un poco or un peu
So does this mean that Un poco adagio a little bit faster or a little bit slower than Adagio? And how fast is that approximately in beats per minute?