======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '319'
                                          'artist'  'Urban Dance Squad'
                                     'text_people'  ''
                                         'release'  'Artantica'
                                           'title'  'Step Off'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['rock', 'dutch', 'hip hop', 'rap', 'crossover']"
                                     'discogstags'  "['hip hop', 'rock', 'alternative rock', 'funk metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '14'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '94.946'
                                             'key'  '9A'
                                        'acoustid'  '0ef2b072-14b5-411e-92dd-cf731b9a0f26'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Artantica'
'TBPM' (BPM (beats per minute))                     '94.946'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Step Off'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Urban Dance Squad'
'TPE2' (Band/orchestra/accompaniment)               'Urban Dance Squad'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '1/14'
'TSO2'                                              'Urban Dance Squad'
'TSOP' (Performer sort order)                       'Urban Dance Squad'
'TXXX:ASIN'                                         'B00000JAWB'
'TXXX:Acoustid Id'                                  '0ef2b072-14b5-411e-92dd-cf731b9a0f26'
'TXXX:BARCODE'                                      '724384719128'
'TXXX:CATALOGNUMBER'                                '8 47191 2'
'TXXX:MusicBrainz Album Artist Id'                  '770b04ac-7075-4a39-ab37-dd2885b21e2f'
'TXXX:MusicBrainz Album Id'                         '7e22b820-5092-4452-9a32-141562777efd'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '770b04ac-7075-4a39-ab37-dd2885b21e2f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['hip hop', 'rock', 'alternative rock', 'funk metal']
'TXXX:lastfmtags'                                   ['rock', 'dutch', 'hip hop', 'rap', 'crossover']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.441272'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0fa11d57-b56c-4dd5-80ab-9e80c91101da')

========================== row from database ==========================
                                              'id'  1339255
                                            'path'  /data/Music/Bulk/00poprockelectronic/Urban Dance Squad/Artantica/Urban Dance Squad - Step Off - 01.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  319
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  5114280
                                           'mtime'  1636403684
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 01 electronic generic or radio bigbeat
                                      'tag_artist'  Urban Dance Squad
                                     'tag_release'  Artantica
                                       'tag_title'  Step Off
                                             'bpm'  94.946
                                    'search_title'  'off':2 'step':1
                                   'search_artist'  'dance':2 'squad':3 'urban':1
                                  'search_release'  'artantica':1
                                     'search_rest'  '00poprockelectronic':1 'bigbeat':6 'electronic':2 'generic':3 'or':4 'radio':5
                                    'search_combo'  '00poprockelectronic':7 'artantica':6C 'bigbeat':12 'dance':4B 'electronic':8 'generic':9 'off':2A 'or':10 'radio':11 'squad':5B 'step':1A 'urban':3B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', '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-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'dutch', 'hip hop', 'rap', 'crossover']
                                        'tag_date'  1999
                                     'discogstags'  ['hip hop', 'rock', 'alternative rock', 'funk metal']

============================== file details ==============================
                                           'mtime'  1636403684.1114311  (2021-11-08 21:34:44)
                             'size'  5114280