This Wednesday, Q2 Music begins its Winter Pledge Drive. In anticipation, we're revisiting some of our favorite guest-hosted shows on Monday and Tuesday. On Monday, we heard Nico Muhly's Obsessive Choral. On Tuesday, we hear Mexico at 200, Philharmonic Orchestra of the Americas conductor Alondra de la Parra's look at the birth and progression of Mexican orchestral music.

Composer, pianist and erstwhile boy soprano Nico Muhly has been a part of Q2's musical family since the beginning. Today at 12 pm, we revisit the composer's four-part survey of his first love: choral music.

Stravinsky famously said: "Music is, by its very nature, essentially powerless to express anything at all." Q2's Nadia Sirota doesn't buy it: "It seems totally out of place given the way his music moves me."

As numerous ads for sunny getaways in the subway temptingly imply, let's face it: there's no better time of year to get out of town than February. But if your wallet won't have it, here's a modest solution, let Q2 Music take you on a quick trip to some of New Music's hot spots around the world.

Composing isn't always a solitary activity. This week, Nadia Sirota explores a variety of different composer collectives, including Bang On a Can, the NOW Ensemble, Sleeping Giant, Ears Open!, and Common Sense.