David Russell live demonstation on cross string trills:

Grammy-winning guitarist David Russell gives a live studio demonstration and reveals his secret technique for doing incredibly fast and smooth trills on guitar: From the Classical Guitar Alive! radio program. Classical Guitar Alive! is produced by Tony Morris and is the only nationally-broadcast guitar radio program in America, and airs each week on 250+ NPR and classical radio stations, reaching 400,000 listeners. Thanks to our generous supporters, including The Augustine Foundation, the Kodosky Family Fund, @augustinestrings , Charles and Taako Parker, and a gift in loving memory of Adam Bratcher. For more information, and to listen to over 500 episodes online, and support the broadcasts, visit: www.GuitarAlive.org