Local band Madrigal discusses their work and friendship In just four years, local band Madrigal has gone from playing in Corpus Christi garages to one of the biggest music festivals in the country. The alternative rock group, made up of four longtime friends, three of them Del Mar College students, will take the stage at Austin’s South by Southwest Music Festival in March, with the dates to be determined. “Two years ago, I went to South by (Southwest) and I really wanted Madrigal to play, and this year we are playing,” said Tomas Gonzalez, a music education major. Gonzalez, along…