======================== unified (from filesystem) ========================
                                         'bitrate'  '191.688'
                                        'duration'  '206'
                                          'artist'  'N-Trance'
                                     'text_people'  ''
                                         'release'  'The Best Club Anthems 2002'
                                           'title'  'Set You Free'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
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 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['90s', 'dance', 'trance', 'eurodance', 'techno', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '42'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '139.948'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'The Best Club Anthems 2002'
'TBPM' (BPM (beats per minute))                     '139.948'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2002-01-28'
'TIT2' (Title/songname/content description)         'Set You Free'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'N-Trance'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Virgin TV'
'TRCK' (Track number/Position in set)               '15/42'
'TSOP' (Performer sort order)                       'N-Trance'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:ASIN'                                         'B00005RKRG'
'TXXX:BARCODE'                                      '724381072028'
'TXXX:CATALOGNUMBER'                                'VTDCD 401'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '4349e6b8-f49d-40d4-98b3-7ffd27c67736'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '17adce06-a815-4c5b-9be7-e6b184f92ee4'
'TXXX:MusicIP PUID'                                 '57a75c5a-b19b-cb94-c639-5f62ced3b8c4'
'TXXX:MusicMagic Data'                              'AgEBbgBVi1Ko2q0AgkUsHEZR6naCHIDp1o6WdlD61gL3AsklgAHK2K1P29H1v5+6g4uAAd6YgyvojvmHgAHMf/5tEFuqq8VFJaWAAZcylhm0IYIZG/RN49RYgYuFgMTmlyBOzLmNBXGVV4YjwbO0fN4T96TaPoRRgAHuHYXZ9Jzr9oAB2cDnhARBqb3PwekggRM='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['90s', 'dance', 'trance', 'eurodance', 'techno', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.538726'

========================== row from database ==========================
                                              'id'  1300011
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/05 - EuroDance Hit 93-95 vol 5 - Set you free (remix).mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  206
                                           'genre'  electronic-th-techno
                                        'filesize'  4959215
                                           'mtime'  1620573246
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 05 EuroDance Hit 93 95 vol 5 you free (remix) electronic techno
                                      'tag_artist'  N-Trance
                                     'tag_release'  The Best Club Anthems 2002
                                       'tag_title'  Set You Free
                                             'bpm'  139.948
                                    'search_title'  'free':3 'set':1 'you':2
                                   'search_artist'  'n':1 'ntrance':3 'trance':2
                                  'search_release'  '2002':5 'anthems':4 'best':2 'club':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '5':18 '93':15 '95':16 'best':9 'club':7,8 'dance':5,6 'electronic':23 'etc':12 'euro':25 'eurodance':13 'free':20 'hit':14 'of':10,11 'remix':21,22 'techno':24 'top':3,4 'unsorted':2 'vol':17 'you':19
                                    'search_combo'  '00poprockelectronic':12 '2002':11C '5':29 '93':26 '95':27 'anthems':10C 'best':8C,20 'club':9C,18,19 'dance':16,17 'electronic':34 'etc':23 'euro':36 'eurodance':24 'free':3A,31 'hit':25 'n':4B 'ntrance':6B 'of':21,22 'remix':32,33 'set':1A 'techno':35 'the':7C 'top':14,15 'trance':5B 'unsorted':13 'vol':28 'you':2A,30
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'dance', 'trance', 'eurodance', 'techno', 'electronic']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573245.9367487  (2021-05-09 17:14:05)
                             'size'  4959215