Rivers Cuomo - What is this i find

This song is easiest played in standard tuning, however, in the recording it sounds like Rivers is playing 1/4 step down, tuned in the middle of Eb and Standard. It sounds fine in standard, just a bit sharp when playing along with the recording. TABBED BY DOUGLAS KUHN From "Songs From The Black Hole" by Weezer Released on "Alone 3" By Rivers Cuomo What is this I find? E|--------------------| B|--------------------| G|--------------0--3--| D|-----0--1--3--------| A|--3-----------------| E|--------------------| Under your behind? E|--------------------| B|-----------------0--| G|-----0--3--------0--| D|--2--------2--3-----| A|--------------------| E|--------------------| Extra huge E|--------------| B|--------------| G|--------------| D|-----0--1--3--| A|--3-----------| E|--------------| And it's used E|--------------| B|--------------| G|--------------| D|--------0--1--| A|--1--3--------| E|--------------| I wonder which two of us best of friends opened and used it E|-----------------------| B|-----------------------| G|--0------------------5-| D|-----3--1--0-----3/5---| A|--------------3--------| E|-----------------------|