It wasn’t the concert the Institute of Musical Traditions originally envisioned, but thanks to the professionalism and love for music the performers brought to the evening, it was more than advertised. Andrew and I took in the regular Monday night IMT concert this evening, which featured Peter Ostroushko and Danny Gotham.  However, they were delayed by a major pile up on I-70 that  Peter later told us included a fiery semi that was completely incinerated.  Thanks to quick thinking by the IMT folks, however, they called in friends Cathy Fink and Marcy Marxer and in a delightful half-hour opening set they kept the evening moving and proved they’re much more than just children’s artists.  Marxer’s musicianship was in special evidence on her cello banjo and in some sweet swing guitar solos.  Ostroushko and Gotham then took the stage and began with a mandolin duet of tunes learned from Norman Blake.  The second tune in the medley, a Blake original entitled Jeff Davis, got Ostroushko in the mood for some political humor.  He told of a time …