I've been using the e-bow with a variety of non-guitar acoustic stringed instruments (including tanpura) and it *is* as good as everyone claims. :-) A couple of pointers: 1) as Bobdog mentioned since the e-bow's magnetic it simply won't work with brass or bronze strings (usually the PA and low SA on tanpura). You can often replace the PA (1st) string on the tanpura with a comparably thick steel string and suffer no loss of tone. The low SA string is tougher. I'm sure you could substitute a very thick steel string, but I'd be concerned with having too much tension on the neck, as well as cutting into the wooden tuning peg and the face of the instrument. 2) I've encountered similar problems with the sitar and surbahar, since only the main playing string on each is steel. The lower octave strings are bronze, so no go. Another problem with these instruments is that it's very difficult to keep the right hand (which is holding the e-bow) moving smoothly enough to follow the 3, 4, or 5-note bending meends (lateral pulling) that the left hand is executing. Maybe some of the guitarists on the list can offer some suggestions? Also, the e-bow in the absence of a pickup tends to be fairly soft and so generally does not excite the sympathetic strings the way that plucking does. 3) Double-course strings (like those on a 12-string guitar) or triple course (like a Turkish baglama) are also really tough -- if the strings are extremely close together they tend to vibrate against each other, cancelling the sound entirely. I've found I've had to really focus on a single string and hope that the others don't get too much in the way. 4) Back to the tanpura (and to looping) -- I've found that a really rich drone can be created by looping the plucked sound of the tanpura first, then overdubbing a single e-bowed string (or multiple overdubs of the strings). With a little practice you can also get lovely effects by occasionally tapping the string very lightly at one of the harmonic nodes while it's already vibrating. You'll also find that by experimenting with the distance that it's held from the string you can produce many different overtones, etc. 5) I've used the e-bow with all these instruments both unamplified as well as with temporary pickups. Of course there's a bit more control with the pickup and amp volume settings, but nothing like an electric guitar (since I don't position my pickups directly beneath the strings).