======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '260'
                                          'artist'  'African Head Charge'
                                     'text_people'  ''
                                         'release'  'My Life In A Hole In The Ground'
                                           'title'  'Family Doctoring'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'world fusion', 'drjazzmrfunkmusic', 'electronic']"
                                     'discogstags'  "['reggae', 'reggae', 'dub']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1981'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-modern'
                                             'bpm'  '137.9'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'My Life In A Hole In The Ground'
'TBPM' (BPM (beats per minute))                     '137.9'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-modern'
'TDRC' (Recording time)                             '1981'
'TIT2' (Title/songname/content description)         'Family Doctoring'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'African Head Charge'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['reggae', 'reggae', 'dub']
'TXXX:lastfmtags'                                   ['reggae', 'dub', 'world fusion', 'drjazzmrfunkmusic', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.66 dB'
'TXXX:replaygain_track_peak'                        '0.588460'

========================== row from database ==========================
                                              'id'  457481
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/african head charge -1981 my life in a hole in the ground/02-family doctoring.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  260
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-modern
                                        'filesize'  6246400
                                           'mtime'  1620520595
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm african head charge 1981 my life hole the ground 02 family doctoring loc style reggae dub ska dancehall dub modern
                                      'tag_artist'  African Head Charge
                                     'tag_release'  My Life In A Hole In The Ground
                                       'tag_title'  Family Doctoring
                                             'bpm'  137.9
                                    'search_title'  'doctoring':2 'family':1
                                   'search_artist'  'african':1 'charge':3 'head':2
                                  'search_release'  'a':4 'ground':7 'hole':5 'in':3 'life':2 'my':1 'the':6
                                     'search_rest'  '1981':4 'african':1 'charge':3 'dancehall':17 'doctoring':11 'dub':15 'family':10 'ground':9 'head':2 'hole':7 'life':6 'loc':12 'modern':18 'my':5 'reggae':14 'ska':16 'style':13 'the':8
                                    'search_combo'  '1981':16 'a':9C 'african':3B,13 'charge':5B,15 'dancehall':29 'doctoring':2A,23 'dub':27 'family':1A,22 'ground':12C,21 'head':4B,14 'hole':10C,19 'in':8C 'life':7C,18 'loc':24 'modern':30 'my':6C,17 'reggae':26 'ska':28 'style':25 'the':11C,20
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dub', 'world fusion', 'drjazzmrfunkmusic', 'electronic']
                                        'tag_date'  1981
                                     'discogstags'  ['reggae', 'reggae', 'dub']

============================== file details ==============================
                                           'mtime'  1620520594.9480004  (2021-05-09 02:36:34)
                             'size'  6246400