======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '276'
                                          'artist'  'Over The Rhine'
                                     'text_people'  ''
                                         'release'  'Good Dog Bad Dog- The Home Recordings'
                                           'title'  'A Gospel Number'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alt country', 'alternative', 'female vocalists', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-folk-rock'
                                             'bpm'  '93.933'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Good Dog Bad Dog- The Home Recordings'
'TBPM' (BPM (beats per minute))                     '93.933'
'TCON' (Content type, a.k.a. Genre)                 'ifs-folk-rock'
'TIT2' (Title/songname/content description)         'A Gospel Number'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Over The Rhine'
'TRCK' (Track number/Position in set)               '8'
'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:lastfmtags'                                   ['indie', 'alt country', 'alternative', 'female vocalists', 'folk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.00 dB'
'TXXX:replaygain_track_peak'                        '0.927136'

========================== row from database ==========================
                                              'id'  1491742
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Over The Rhine - Good Dog _ Bad Dog - 08 - 8.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  276
                                           'genre'  ifs-folk-rock
                                        'filesize'  3325778
                                           'mtime'  1637330728
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch _ 08 8 ifs folk rock
                                      'tag_artist'  Over The Rhine
                                     'tag_release'  Good Dog Bad Dog- The Home Recordings
                                       'tag_title'  A Gospel Number
                                             'bpm'  93.933
                                    'search_title'  'a':1 'gospel':2 'number':3
                                   'search_artist'  'over':1 'rhine':3 'the':2
                                  'search_release'  'bad':3 'dog':2,4 'good':1 'home':6 'recordings':7 'the':5
                                     'search_rest'  '00dutch':4 '00mid':1 '8':5 'europe':3 'folk':7 'ifs':6 'north':2 'rock':8
                                    'search_combo'  '00dutch':17 '00mid':14 '8':18 'a':1A 'bad':9C 'dog':8C,10C 'europe':16 'folk':20 'good':7C 'gospel':2A 'home':12C 'ifs':19 'north':15 'number':3A 'over':4B 'recordings':13C 'rhine':6B 'rock':21 'the':5B,11C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alt country', 'alternative', 'female vocalists', 'folk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330727.823665  (2021-11-19 15:05:27)
                             'size'  3325778