Always stamp your trenitalia tickets at the little yellow boxes at the station, otherwise the conductor will charge you 25euros extra.
Any violinists should go to Cremona for the birthplace of stradivari violins and beautiful architecture.
The yellow boxes are usually found at the beginning of a platform. Just stick in the ticket and the end will get stamped.
Cremona is near Brescia and is accessible by train.
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The "multa" (fine) is 22euro! If you have a VeronaCard, the sightseeing ticket for most of the monuments, the bus is free. Just make sure you have it with you!