======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '568'
                                          'artist'  'Rob G'
                                     'text_people'  'Delia Derbyshire'
                                         'release'  ''
                                           'title'  'Electrowho'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-2', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['hard tehno', 'lidarr', 'brilliant', 'barnsley south yorkshire', 'bomfest']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '130.063'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.063'
'TCOM' (Composer)                                   'Rob G'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Electrowho'
'TKEY' (Initial key)                                '9A'
'TOPE' (Original artist(s)/performer(s))            'Delia Derbyshire'
'TPE1' (Lead performer(s)/Soloist(s))               'Rob G'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['hard tehno', 'lidarr', 'brilliant', 'barnsley south yorkshire', 'bomfest']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.63 dB'
'TXXX:replaygain_track_peak'                        '0.511000'

========================== row from database ==========================
                                              'id'  980163
                                            'path'  /data/Music/Bulk/0soundtrack/Dr Who - Collection/Dr Who - Electrowho - By Rob G.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  568
                                           'genre'  soundtrack-video-series
                                        'filesize'  9109261
                                           'mtime'  1636921514
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Dr Who Collection Dr Who By soundtrack video series
                                      'tag_artist'  Rob G
                                     'tag_release'  None
                                       'tag_title'  Electrowho
                                             'bpm'  130.063
                                    'search_title'  'electrowho':1
                                   'search_artist'  'g':2 'rob':1
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'by':5 'collection':4 'dr':2 'series':8 'soundtrack':6 'video':7 'who':3
                                    'search_combo'  '0soundtrack':4 'by':8 'collection':7 'dr':5 'electrowho':1A 'g':3B 'rob':2B 'series':11 'soundtrack':9 'video':10 'who':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hard tehno', 'lidarr', 'brilliant', 'barnsley south yorkshire', 'bomfest']
                                        'tag_date'  2007
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1636921514.3930151  (2021-11-14 21:25:14)
                             'size'  9109261