tuning drop a 7 string aeadgbe

this is what i have so far i'll be adding more soon





e|--------------------------------------------------------------------------|
b|-12-13-12-10--------------------------------------------------------------|
g|-------------12-13-12-10--------------------------------------------------|
d|-------------------------12-13-12-10--------------------------------------|
a|-------------------------------------12-13-12-10--------------------------|
e|--------------------------------------------------12-13-12-10-------------|
a|--------------------------------------------------------------12-13-12-10-|

e|-------------|
b|-------------|
g|-------------|
d|-------------|
a|-------------|
e|-------------|
a|-12~-13~-15~-|