======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'The Walflower Complextion'
                                     'text_people'  ''
                                         'release'  'Tape No106 - Play With Fire (Covering The Rolling Stones, Part III)'
                                           'title'  'Blue Turns To Grey'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'colombia', '60s']"
                                     'discogstags'  "['garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '113.7'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     'Tape No106 - Play With Fire (Covering The Rolling Stones, Part III)'
'TBPM' (BPM (beats per minute))                     '113.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Blue Turns To Grey'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Walflower Complextion'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '18'
'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:country'                                      'US'
'TXXX:discogstags'                                  ['garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'colombia', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+23.15 dB'
'TXXX:replaygain_track_peak'                        '0.040553'
'TXXX:tracknum'                                     '18'

========================== row from database ==========================
                                              'id'  502584
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT106/18 - The Walflower Complextion - Blue Turns To Grey (1967 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3547618
                                           'mtime'  1620384254
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT106 18 (1967 US) rock gr garage;set garagetapes
                                      'tag_artist'  The Walflower Complextion
                                     'tag_release'  Tape No106 - Play With Fire (Covering The Rolling Stones, Part III)
                                       'tag_title'  Blue Turns To Grey
                                             'bpm'  113.7
                                    'search_title'  'blue':1 'grey':4 'to':3 'turns':2
                                   'search_artist'  'complextion':3 'the':1 'walflower':2
                                  'search_release'  'covering':6,7 'fire':5 'iii':13,14 'no106':2 'part':12 'play':3 'rolling':9 'stones':10,11 'tape':1 'the':8 'with':4
                                     'search_rest'  '18':6 '1967':7,8 'blogspot':2 'com':3 'garage':13,15 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':12 'gt106':5 'rock':11 'set':14,16 'us':9,10
                                    'search_combo'  '18':27 '1967':28,29 'blogspot':23 'blue':1A 'com':24 'complextion':7B 'covering':13C,14C 'fire':12C 'garage':34,36 'garagetapes':22,38 'garagetapesblogspotcom':25 'gr':33 'grey':4A 'gt106':26 'iii':20C,21C 'no106':9C 'part':19C 'play':10C 'rock':32 'rolling':16C 'set':35,37 'stones':17C,18C 'tape':8C 'the':5B,15C 'to':3A 'turns':2A 'us':30,31 'walflower':6B 'with':11C
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  8B
                                           '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-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'colombia', '60s']
                                        'tag_date'  1967
                                     'discogstags'  ['garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620384253.5369666  (2021-05-07 12:44:13)
                             'size'  3547618