======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '136'
                                          'artist'  'Ray King'
                                     'text_people'  ''
                                         'release'  'Pure Truck & Country'
                                           'title'  'Curves And In-Betweens'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  '[\'rockabilly\', \'50s\', "rock\'n\'roll", \'reggae\', \'calypso\']'
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '117.740'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Pure Truck & Country'
'TBPM' (BPM (beats per minute))                     '117.740'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Curves And In-Betweens'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ray King'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['rockabilly', '50s', "rock'n'roll", 'reggae', 'calypso']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.573615'

========================== row from database ==========================
                                              'id'  1250046
                                            'path'  /data/Music/Bulk/00localcharacter/Ray King - Various Artists - Pure Truck & Country (Nashville NLPS 2066) [@320]/02-Ray King-Curves And In-Betweens.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  136
                                           'genre'  loc-namerica-country
                                        'filesize'  5839851
                                           'mtime'  1621629754
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Various Artists (Nashville NLPS 2066) [@320] 02 loc namerica country
                                      'tag_artist'  Ray King
                                     'tag_release'  Pure Truck & Country
                                       'tag_title'  Curves And In-Betweens
                                             'bpm'  117.74
                                    'search_title'  'and':2 'betweens':4 'curves':1 'in':3 'inbetweens':5
                                   'search_artist'  'king':2 'ray':1
                                  'search_release'  'country':3 'pure':1 'truck':2
                                     'search_rest'  '2066':6,7 '320':8,9 'artists':2 'country':12 'loc':10 'namerica':11 'nashville':3,4 'nlps':5 'various':1
                                    'search_combo'  '2066':16,17 '320':18,19 'and':2A 'artists':12 'betweens':4A 'country':10C,22 'curves':1A 'in':3A 'inbetweens':5A 'king':7B 'loc':20 'namerica':21 'nashville':13,14 'nlps':15 'pure':8C 'ray':6B 'truck':9C 'various':11
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rockabilly', '50s', "rock'n'roll", 'reggae', 'calypso']
                                        'tag_date'  1969
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1621629753.630375  (2021-05-21 22:42:33)
                             'size'  5839851