# If you'd like to omit non-matching lines from the result; add ';d' to the end of the expression.
sed -E 's/#EXTVDJ:.*?[0-9]+.*?t>(.*?)<.*?e>(.*?)<.*?\n.*?mp3/$1 - $2/g;t' <<< "#EXTVDJ:<filesize>16027776</filesize><artist>Kyau & Albert, Steve Brian</artist><title>Reverie (DJ Version)</title><songlength>397.340</songlength>
E:\Music\For Sorting\From USB Stick\Music\2017-19\10932465_Reverie_DJ_Version.mp3
#EXTVDJ:<filesize>14624215</filesize><artist>Paul van Dyk, KINETICA</artist><title>First Contact (Original Mix)</title><songlength>361.739</songlength>
E:\Music\For Sorting\July 2020\13319740_First_Contact_Original_Mix.mp3
#EXTVDJ:<filesize>16609012</filesize><artist>Solarstone, Meredith Call</artist><title>I Found You (Giuseppe Ottaviani Remix)</title><songlength>410.929</songlength>
E:\Music\For Sorting\From USB Stick\Music\2017-19\9710365_I_Found_You_Giuseppe_Ottaviani_Remix.mp3
#EXTVDJ:<filesize>13277361</filesize><artist>Darude, Ashley Wallbridge, Foux</artist><title>Surrender feat. Foux (Extended Mix)</title><songlength>328.918</songlength>
E:\Music\For Sorting\From USB Stick\Music\2017-19\10161893_Surrender_feat__Foux_Extended_Mix.mp3
#EXTVDJ:<filesize>21313586</filesize><artist>Ciaran McAuley, Clare Stagg</artist><title>All I Want (Mark Sherry Extended Remix)</title><songlength>526.866</songlength>
E:\Music\For Sorting\July 2020\13446725_All_I_Want_Mark_Sherry_Extended_Remix.mp3
#EXTVDJ:<filesize>15246761</filesize><artist>Cosmic Gate, Denise Rivera</artist><title>Body Of Conflict (Elevven Extended Remix)</title><songlength>377.681</songlength>
E:\Music\For Sorting\July 2020\12462485_Body_Of_Conflict_Elevven_Extended_Remix.mp3
#EXTVDJ:<filesize>17663564</filesize><artist>Philippe El Sisi, Omar Sherif</artist><title>Demolition (Original Mix)</title><songlength>438.857</songlength>
E:\Music\For Sorting\July 2020\13498731_Demolition_Original_Mix.mp3
#EXTVDJ:<filesize>13108166</filesize><artist>Alex Kunnari</artist><title>Sundown (Extended Mix)</title><songlength>323.138</songlength>
E:\Music\For Sorting\From USB Stick\Music\2017-19\10689952_Sundown_Extended_Mix.mp3
#EXTVDJ:<filesize>16468045</filesize><artist>Chris Schweizer</artist><title>Don't Be Scared (Extended Mix)</title><songlength>408.696</songlength>
E:\Music\For Sorting\July 2020\13609598_Don_t_Be_Scared_Extended_Mix.mp3
#EXTVDJ:<filesize>15035754</filesize><artist>Dan Stone, Victoriya</artist><title>I Can't Tell (Ferry Tayle Extended Remix)</title><songlength>372.702</songlength>
E:\Music\For Sorting\July 2020\13689560_I_Can_t_Tell_Ferry_Tayle_Extended_Remix.mp3
#EXTVDJ:<filesize>16562928</filesize><artist>Seri, Nifra</artist><title>Edge of Time feat. Seri (Extended Mix)</title><songlength>410.285</songlength>
E:\Music\For Sorting\From USB Stick\Music\2017-19\9090018_Edge_of_Time_feat__Seri_Extended_Mix.mp3
#EXTVDJ:<filesize>15886841</filesize><artist>Claus Backslash</artist><title>Absolute Delusion (Extended Mix)</title><songlength>395.294</songlength>
E:\Music\For Sorting\July 2020\13741469_Absolute_Delusion_Extended_Mix.mp3
#EXTVDJ:<filesize>18052845</filesize><artist>Sivan, Graham Bell</artist><title>The Sound Of Letting Go (Tribute To Yotam) (Extended Mix)</title><songlength>448.333</songlength>
E:\Music\For Sorting\July 2020\13674262_The_Sound_Of_Letting_Go__Tribute_To_Yotam__Extended_Mix.mp3
"
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for SED, please visit: https://www.gnu.org/software/sed/manual/html_node/The-_0022s_0022-Command.html