======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '189'
                                          'artist'  'Blues Blasters'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  'Martie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues', 'blues rock', 'modern electric blues', 'harmonica blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '136.276'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '136.276'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Martie'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Blues Blasters'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'blues rock', 'modern electric blues', 'harmonica blues']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.582671'

========================== row from database ==========================
                                              'id'  985240
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/(Ackee ACK146B - 1972) Blues Blasters - Martie.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  189
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  3786827
                                           'mtime'  1620523899
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles (Ackee ACK146B 1972) loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  Blues Blasters
                                     'tag_release'  Reggae Singles
                                       'tag_title'  Martie
                                             'bpm'  136.276
                                    'search_title'  'martie':1
                                   'search_artist'  'blasters':2 'blues':1
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '1972':6,7 'ack146b':5 'ackee':3,4 'and':15 'dancehall':13 'dub':11 'loc':8 'or':10 'reggae':1 'roots':14 'singles':2 'ska':12 'style':9
                                    'search_combo'  '1972':11,12 'ack146b':10 'ackee':8,9 'and':20 'blasters':3B 'blues':2B 'dancehall':18 'dub':16 'loc':13 'martie':1A 'or':15 'reggae':4C,6 'roots':19 'singles':5C,7 'ska':17 'style':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'blues rock', 'modern electric blues', 'harmonica blues']
                                        'tag_date'  1972
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620523899.065291  (2021-05-09 03:31:39)
                             'size'  3786827