======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '211'
                                          'artist'  'The Silencers'
                                     'text_people'  ''
                                         'release'  'Ska'
                                           'title'  'Policeman'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'q-syn-2', 'q-bass-4', "
 "'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['rock', 'ska', '80s', 'new wave', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-unsorted'
                                             'bpm'  '107.038'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ska'
'TBPM' (BPM (beats per minute))                     '107.038'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-unsorted'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Policeman'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Silencers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['rock', 'ska', '80s', 'new wave', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.445005'

========================== row from database ==========================
                                              'id'  1329126
                                            'path'  /data/Music/Bulk/00poprockelectronic/Hepcat records/The Silencers - Policeman - 16.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  211
                                           'genre'  loc-style-reggae or dub or ska or dancehall-unsorted
                                        'filesize'  3383718
                                           'mtime'  1620524536
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hepcat records 16 loc style reggae or dub or ska or dancehall unsorted
                                      'tag_artist'  The Silencers
                                     'tag_release'  Ska
                                       'tag_title'  Policeman
                                             'bpm'  107.038
                                    'search_title'  'policeman':1
                                   'search_artist'  'silencers':2 'the':1
                                  'search_release'  'ska':1
                                     'search_rest'  '00poprockelectronic':1 'dancehall':10 'dub':8 'hepcat':2 'loc':4 'or':7 'records':3 'reggae':6 'ska':9 'style':5 'unsorted':11
                                    'search_combo'  '00poprockelectronic':5 'dancehall':14 'dub':12 'hepcat':6 'loc':8 'or':11 'policeman':1A 'records':7 'reggae':10 'silencers':3B 'ska':4C,13 'style':9 'the':2B 'unsorted':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'ska', '80s', 'new wave', 'pop']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524535.7952774  (2021-05-09 03:42:15)
                             'size'  3383718