======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '230'
                                          'artist'  'The Hackensaw Boys'
                                     'text_people'  ''
                                         'release'  'Look out'
                                           'title'  'Too Much Time'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bluegrass', 'folk', 'americana', 'alt-country', 'country']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '12'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country-bluegrass'
                                             'bpm'  '88.476'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Look out'
'TBPM' (BPM (beats per minute))                     '88.476'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country-bluegrass'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Too Much Time'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Hackensaw Boys'
'TRCK' (Track number/Position in set)               '10/12'
'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:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['bluegrass', 'folk', 'americana', 'alt-country', 'country']
'TXXX:q-bass'                                       '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.547184'

========================== row from database ==========================
                                              'id'  466656
                                            'path'  /data/Music/Bulk/00localcharacter/The Hackensaw Boys/Look out/10 Too Much Time.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  230
                                           'genre'  loc-namerica-country-bluegrass
                                        'filesize'  9218600
                                           'mtime'  1621629813
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 10 loc namerica country bluegrass
                                      'tag_artist'  The Hackensaw Boys
                                     'tag_release'  Look out
                                       'tag_title'  Too Much Time
                                             'bpm'  88.476
                                    'search_title'  'much':2 'time':3 'too':1
                                   'search_artist'  'boys':3 'hackensaw':2 'the':1
                                  'search_release'  'look':1 'out':2
                                     'search_rest'  'bluegrass':4 'country':3 'loc':1 'namerica':2
                                    'search_combo'  'bluegrass':12 'boys':6B 'country':11 'hackensaw':5B 'loc':9 'look':7C 'much':2A 'namerica':10 'out':8C 'the':4B 'time':3A 'too':1A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-grit-2']
                                      'lastfmtags'  ['bluegrass', 'folk', 'americana', 'alt-country', 'country']
                                        'tag_date'  2007
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629813.3150995  (2021-05-21 22:43:33)
                             'size'  9218600