======================== unified (from filesystem) ========================
                                         'bitrate'  '230.698'
                                        'duration'  '276'
                                          'artist'  'Kidneythieves'
                                     'text_people'  ''
                                         'release'  'Zerxspace'
                                           'title'  "Befxre I'm Dead"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'rock', 'industrial', 'female vocalists', 'industrial rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '13'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave-industrial'
                                             'bpm'  '112.072'
                                             'key'  '6A'
                                        'acoustid'  '397d6378-e29e-4325-870d-28151e67566c'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Zerxspace'
'TBPM' (BPM (beats per minute))                     '112.072'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave-industrial'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002-03-26'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', '䈀爀甀挀攀\u2000匀漀洀攀爀猀'], ['洀椀砀', '匀攀愀渀\u2000䈀攀愀瘀愀渀']])
'TIT2' (Title/songname/content description)         "Befxre I'm Dead"
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kidneythieves'
'TPE2' (Band/orchestra/accompaniment)               'Kidneythieves'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Extasy Records International'
'TRCK' (Track number/Position in set)               '1/13'
'TSO2'                                              'Kidneythieves'
'TSOP' (Performer sort order)                       'Kidneythieves'
'TSRC' (ISRC (international standard recording code))  'US2IR0100075'
'TXXX:ASIN'                                         'B0000634ET'
'TXXX:Acoustid Id'                                  '397d6378-e29e-4325-870d-28151e67566c'
'TXXX:BARCODE'                                      '093624810520'
'TXXX:CATALOGNUMBER'                                '9 48105-2'
'TXXX:MusicBrainz Album Artist Id'                  '17f17162-7354-41fb-8809-e8b8c906ed12'
'TXXX:MusicBrainz Album Id'                         '3030f89f-7988-45ed-be9a-2ef2f7c26f72'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '17f17162-7354-41fb-8809-e8b8c906ed12'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'rock', 'industrial', 'female vocalists', 'industrial rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.332668'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'44c6a035-1ce3-4393-bd65-85b3e4dafdc6')

========================== row from database ==========================
                                              'id'  1499491
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kidney Thieves/Kidneythieves2002Zerospace/mp3/(01) [Kidneythieves] Before I_m Dead.mp3
                                         'working'  None
                                         'bitrate'  230
                                    'duration_sec'  276
                                           'genre'  eid-ebm or industrial or darkwave-industrial
                                        'filesize'  7978521
                                           'mtime'  1620298539
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Thieves Kidneythieves2002Zerospace mp3 (01) [Kidneythieves] Before I_m eid ebm or industrial or darkwave industrial
                                      'tag_artist'  Kidneythieves
                                     'tag_release'  Zerxspace
                                       'tag_title'  Befxre I'm Dead
                                             'bpm'  112.072
                                    'search_title'  'befxre':1 'dead':5 'i':2 'im':4 'm':3
                                   'search_artist'  'kidneythieves':1
                                  'search_release'  'zerxspace':1
                                     'search_rest'  '00poprockelectronic':1 '01':5,6 'before':9 'darkwave':16 'ebm':13 'eid':12 'i':10 'industrial':15 'kidneythieves':7,8 'kidneythieves2002zerospace':3 'm':11 'mp3':4 'or':14 'thieves':2
                                    'search_combo'  '00poprockelectronic':8 '01':12,13 'before':16 'befxre':1A 'darkwave':23 'dead':5A 'ebm':20 'eid':19 'i':2A,17 'im':4A 'industrial':22 'kidneythieves':6B,14,15 'kidneythieves2002zerospace':10 'm':3A,18 'mp3':11 'or':21 'thieves':9 'zerxspace':7C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['electronic', 'rock', 'industrial', 'female vocalists', 'industrial rock']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620298538.5876842  (2021-05-06 12:55:38)
                             'size'  7978521