======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '146'
                                          'artist'  'The New Colony Six'
                                     'text_people'  ''
                                         'release'  'Tape No047 - Who Do You Love (Covering The Songs Of Bo Diddley) - Part I'
                                           'title'  'Cadillac'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'garage rock', 'psychedelic', 'rock', 'american']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '123.7'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tape No047 - Who Do You Love (Covering The Songs Of Bo Diddley) - Part I'
'TBPM' (BPM (beats per minute))                     '123.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Cadillac'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The New Colony Six'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'TXXX:COUNTRY'                                      'US'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['60s', 'garage rock', 'psychedelic', 'rock', 'american']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+23.25 dB'
'TXXX:replaygain_track_peak'                        '0.027749'
'TXXX:tracknum'                                     '09'

========================== row from database ==========================
                                              'id'  505102
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT047/09 - The New Colony Six - Cadillac (1966 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  146
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3522354
                                           'mtime'  1620383150
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT047 09 (1966 US) rock gr garage;set pl garagetapes
                                      'tag_artist'  The New Colony Six
                                     'tag_release'  Tape No047 - Who Do You Love (Covering The Songs Of Bo Diddley) - Part I
                                       'tag_title'  Cadillac
                                             'bpm'  123.7
                                    'search_title'  'cadillac':1
                                   'search_artist'  'colony':3 'new':2 'six':4 'the':1
                                  'search_release'  'bo':12 'covering':7,8 'diddley':13,14 'do':4 'i':16 'love':6 'no047':2 'of':11 'part':15 'songs':10 'tape':1 'the':9 'who':3 'you':5
                                     'search_rest'  '1966':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt047':5 'pl':16 'rock':10 'set':13,15 'us':8,9
                                    'search_combo'  '1966':27,28 'blogspot':23 'bo':17C 'cadillac':1A 'colony':4B 'com':24 'covering':12C,13C 'diddley':18C,19C 'do':9C 'garage':33,35 'garagetapes':22,38 'garagetapesblogspotcom':25 'gr':32 'gt047':26 'i':21C 'love':11C 'new':3B 'no047':7C 'of':16C 'part':20C 'pl':37 'rock':31 'set':34,36 'six':5B 'songs':15C 'tape':6C 'the':2B,14C 'us':29,30 'who':8C 'you':10C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'garage rock', 'psychedelic', 'rock', 'american']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620383149.5290334  (2021-05-07 12:25:49)
                             'size'  3522354