http://www.guitarforbeginners.com/open_tunings.html
http://www.well.com/user/wellvis/tuning.html
https://papadafoe.com/lap-steel-tuning-database?fbclid=IwAR06sOQ7YWLrR6fu2VvKom6j0y6I9sh0XBRK8P319n9X39SH-9oLK_LcbQU
http://members.cox.net/waguitartunings/tunings.htm
http://ilapsteel.com/ ( tapez " Tunings " dans l'onglet superieur)
une idée des tailles de cordes en fonction des " tunings ( accord en open )
http://www.hawaiiansteel.com/learning/gauges.php
http://www.power-chord.com/gaff/mapper/
http://www.cindycashdollar.com/tunings/
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B11 est un accord combiné
un A6 ainsi que : B7, B9, B11.
Fret 2 is B6, and Open is B9. Whatever 6th chord you are playing, just drop back two frets for the 7th or 9th chord. For example, A6 on fret 12 (strings 1 through 4), drop back to fret 10 and play the middle strings (omit string 1) for A9. That big 9th chord is the basis of songs like "How D'ya Do" and "Sand".
Check out my tab below to see one way to play a I, IV, V pattern on B11.
The chart below shows some of the open chord positions, with root note A, root note F#, and root note B. There are other open chords that I left off the chart... a diminshed chord on strings 3, 4, 5. Also Am6, flat 5, Aadd2, etc.