======================== unified (from filesystem) ========================
                                         'bitrate'  '128.102'
                                        'duration'  '133'
                                          'artist'  'Johnny Horton'
                                     'text_people'  ''
                                         'release'  'Johnny Horton 1956-1960'
                                           'title'  "I Can't Forget You"
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                                      'lastfmtags'  "['honky tonk', 'country', '50s', 'rockabilly', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  '32'
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '82'
                                             'key'  '7B'
                                        'acoustid'  '0675c1f5-08e5-4c0b-96f5-14bfa592db88'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Johnny Horton 1956-1960'
'TBPM' (BPM (beats per minute))                     '82'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         "I Can't Forget You"
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Horton'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Horton'
'TPOS' (Part of a set)                              '1/4'
'TPUB' (Publisher)                                  'Bear Family Records'
'TRCK' (Track number/Position in set)               '25/32'
'TSO2'                                              'Horton, Johnny'
'TSOP' (Performer sort order)                       'Horton, Johnny'
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'TXXX:Acoustid Id'                                  '0675c1f5-08e5-4c0b-96f5-14bfa592db88'
'TXXX:Artists'                                      'Johnny Horton'
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'TXXX:CATALOGNUMBER'                                'BCD 15470 DI'
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'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['honky tonk', 'country', '50s', 'rockabilly', 'classic country']
'TXXX:originalyear'                                 '1991'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
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'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.502883'
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========================== row from database ==========================
                                              'id'  1512268
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Jim Reeves - I CAN_T FORGET YOU 1958.wma.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  133
                                           'genre'  loc-namerica-country
                                        'filesize'  2204629
                                           'mtime'  1621628175
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Jim Reeves CAN_T FORGET YOU 1958.wma loc namerica country
                                      'tag_artist'  Johnny Horton
                                     'tag_release'  Johnny Horton 1956-1960
                                       'tag_title'  I Can't Forget You
                                             'bpm'  82.0
                                    'search_title'  'can':2 'cant':4 'forget':5 'i':1 't':3 'you':6
                                   'search_artist'  'horton':2 'johnny':1
                                  'search_release'  '1956':3 '19561960':5 '1960':4 'horton':2 'johnny':1
                                     'search_rest'  '1958':13 '1958wma':15 'can':9 'country':4 'exotica':2 'forget':11 'jazz':1 'jim':7 'loc':16 'music':6 'namerica':17 'old':5 'oldies':3 'reeves':8 't':10 'wma':14 'you':12
                                    'search_combo'  '1956':11C '19561960':13C '1958':26 '1958wma':28 '1960':12C 'can':2A,22 'cant':4A 'country':17 'exotica':15 'forget':5A,24 'horton':8B,10C 'i':1A 'jazz':14 'jim':20 'johnny':7B,9C 'loc':29 'music':19 'namerica':30 'old':18 'oldies':16 'reeves':21 't':3A,23 'wma':27 'you':6A,25
                                    'tag_tracknum'  25
                                      'num_images'  1
                                             'key'  7B
                                           '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-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['honky tonk', 'country', '50s', 'rockabilly', 'classic country']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628174.614079  (2021-05-21 22:16:14)
                             'size'  2204629