======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '154'
                                          'artist'  'Roy Acuff'
                                     'text_people'  ''
                                         'release'  'Essential Roy Acuff 1936-1949'
                                           'title'  'Fireball Mail'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwriter', '30s', 'americana', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '20'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '117.2'
                                             'key'  '11B'
                                        'acoustid'  'bf75f53a-d1c3-48e9-8cb1-1635a565d87f'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Essential Roy Acuff 1936-1949'
'TBPM' (BPM (beats per minute))                     '117.2'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1992-10-13'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Bob Irwin']])
'TIT2' (Title/songname/content description)         'Fireball Mail'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Roy Acuff'
'TPE2' (Band/orchestra/accompaniment)               'Roy Acuff'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia/Legacy'
'TRCK' (Track number/Position in set)               '8/20'
'TSO2'                                              'Acuff, Roy'
'TSOP' (Performer sort order)                       'Acuff, Roy'
'TXXX:ASIN'                                         'B000002889'
'TXXX:Acoustid Id'                                  'bf75f53a-d1c3-48e9-8cb1-1635a565d87f'
'TXXX:BARCODE'                                      '074644895629'
'TXXX:CATALOGNUMBER'                                'CK 48956'
'TXXX:MusicBrainz Album Artist Id'                  'd7db24ec-d95b-409a-9841-afd946701435'
'TXXX:MusicBrainz Album Id'                         '5ac9a783-891e-400b-b79c-8bce22a7b11e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'd7db24ec-d95b-409a-9841-afd946701435'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['country', 'singer songwriter', '30s', 'americana', 'classic country']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.07 dB'
'TXXX:replaygain_track_peak'                        '0.662607'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f259a615-aded-4983-ae01-4388deaf7946')

========================== row from database ==========================
                                              'id'  1369866
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Roy Acuff - 1998 - A-138 - Essential  1936-1949/Acuff, Roy - Essential  - 08 - fireball mail.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  154
                                           'genre'  loc-namerica-country
                                        'filesize'  2468603
                                           'mtime'  1621628837
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1998 138 Acuff, 08 fireball mail loc namerica country
                                      'tag_artist'  Roy Acuff
                                     'tag_release'  Essential Roy Acuff 1936-1949
                                       'tag_title'  Fireball Mail
                                             'bpm'  117.2
                                    'search_title'  'fireball':1 'mail':2
                                   'search_artist'  'acuff':2 'roy':1
                                  'search_release'  '1936':4 '19361949':6 '1949':5 'acuff':3 'essential':1 'roy':2
                                     'search_rest'  '138':2 '1998':1 'acuff':3,4 'country':9 'fireball':5 'loc':7 'mail':6 'namerica':8
                                    'search_combo'  '138':12 '1936':8C '19361949':10C '1949':9C '1998':11 'acuff':4B,7C,13,14 'country':19 'essential':5C 'fireball':1A,15 'loc':17 'mail':2A,16 'namerica':18 'roy':3B,6C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwriter', '30s', 'americana', 'classic country']
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628837.3975916  (2021-05-21 22:27:17)
                             'size'  2468603