======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '247'
                                          'artist'  'The Cat Empire'
                                     'text_people'  ''
                                         'release'  'The Cat Empire'
                                           'title'  'Days Like These'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['australian', 'jazz', 'ska', 'alternative', 'funk']"
                                     'discogstags'  ("['hip hop', 'reggae', 'latin', 'funk / soul', 'folk, world, & country', "
 "'reggae', 'dub', 'folk', 'funk', 'soul']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '103.062'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Cat Empire'
'TBPM' (BPM (beats per minute))                     '103.062'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Days Like These'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cat Empire'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['hip hop',
 'reggae',
 'latin',
 'funk / soul',
 'folk, world, & country',
 'reggae',
 'dub',
 'folk',
 'funk',
 'soul']
'TXXX:lastfmtags'                                   ['australian', 'jazz', 'ska', 'alternative', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.455207'

========================== row from database ==========================
                                              'id'  1278287
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Cat Empire/Cat Empire/MBZ;#The Cat Empire;#The Cat Empire;#02;#Days Like These.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  247
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  4959803
                                           'mtime'  1620520499
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country MBZ;#The Empire;#The Empire;#02;#Days loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  The Cat Empire
                                     'tag_release'  The Cat Empire
                                       'tag_title'  Days Like These
                                             'bpm'  103.062
                                    'search_title'  'days':1 'like':2 'these':3
                                   'search_artist'  'cat':2 'empire':3 'the':1
                                  'search_release'  'cat':2 'empire':3 'the':1
                                     'search_rest'  '02':14,17 'country':4 'dancehall':25 'days':15,18 'dub':23 'empire':9,11,13,16 'exotica':2 'jazz':1 'loc':19 'mbz':5,7 'oldies':3 'or':22 'reggae':21 'ska':24 'style':20 'the':6,8,10,12
                                    'search_combo'  '02':23,26 'cat':5B,8C 'country':13 'dancehall':34 'days':1A,24,27 'dub':32 'empire':6B,9C,18,20,22,25 'exotica':11 'jazz':10 'like':2A 'loc':28 'mbz':14,16 'oldies':12 'or':31 'reggae':30 'ska':33 'style':29 'the':4B,7C,15,17,19,21 'these':3A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['australian', 'jazz', 'ska', 'alternative', 'funk']
                                        'tag_date'  2003
                                     'discogstags'  ['hip hop', 'reggae', 'latin', 'funk / soul', 'folk, world, & country', 'reggae', 'dub', 'folk', 'funk', 'soul']

============================== file details ==============================
                                           'mtime'  1620520499.018609  (2021-05-09 02:34:59)
                             'size'  4959803