Allen I didn't get a chance to see the other dadgad thread that has been running, but I'd like to respond to your question about why those who use dadgad tuning seem to use it extensively. All these different tunings have some unique applications, dadgad, because of its "droning" quality seems ideal for celtic music. I suspect those who seem to use dadgad a lot, are staying in one genre of music. Either that or they have become too acustomed to the chord structure in any one particular tuning. Anyhow thats my bit. Good thread!