Symmetrical and Other Scales for Seven String Guitar (Basic Scale Guides for Seven String Guitar Book 4) - Kindle edition by Silver, Rob . Arts & Photography Kindle eBooks @ Amazon.com.
1st Chord Book For The 7-string Guitar by Sims Jerry for Guitar
9781574243659: The Art of Russian Gypsy Guitar: For 6 & 7 String Guitars - Timofeyev, Oleg; Kondenko, Fedor: 1574243659 - AbeBooks
Sweep Picking Speed Strategies for 7-String Guitar on Apple Books
Schecter C-7 Deluxe 7-String Electric Guitar (Left Hand, Satin Black) with Guitar Amplifier, Gig Bag and Book Bundle (4 Items) | Reverb