======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'Los Flippers'
                                     'text_people'  ''
                                         'release'  "Tape No045 - Psychedelic (That's Where It's At)"
                                           'title'  'Las Dunas De La Arena'
                                           '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-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'rock', 'colombia', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '123.5'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM::\x00\x00+'                                   'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     "Tape No045 - Psychedelic (That's Where It's At)"
'TBPM' (BPM (beats per minute))                     '123.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Las Dunas De La Arena'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Flippers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '03'
'TXXX:COUNTRY'                                      'CO'
'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'                                   ['all', 'rock', 'colombia', '70s']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+24.37 dB'
'TXXX:replaygain_track_peak'                        '0.032852'
'TXXX:tracknum'                                     '03'

========================== row from database ==========================
                                              'id'  499156
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT045/03 - Los Flippers - Las Dunas De La Arena (1967 CO).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  5308290
                                           'mtime'  1620383125
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT045 03 (1967 CO) rock gr garage;set pl garagetapes
                                      'tag_artist'  Los Flippers
                                     'tag_release'  Tape No045 - Psychedelic (That's Where It's At)
                                       'tag_title'  Las Dunas De La Arena
                                             'bpm'  123.5
                                    'search_title'  'arena':5 'de':3 'dunas':2 'la':4 'las':1
                                   'search_artist'  'flippers':2 'los':1
                                  'search_release'  'at':11,12 'it':8 'its':10 'no045':2 'psychedelic':3 's':5,9 'tape':1 'that':4 'thats':6 'where':7
                                     'search_rest'  '1967':6,7 'blogspot':2 'co':8,9 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt045':5 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1967':25,26 'arena':5A 'at':18C,19C 'blogspot':21 'co':27,28 'com':22 'de':3A 'dunas':2A 'flippers':7B 'garage':31,33 'garagetapes':20,36 'garagetapesblogspotcom':23 'gr':30 'gt045':24 'it':15C 'its':17C 'la':4A 'las':1A 'los':6B 'no045':9C 'pl':35 'psychedelic':10C 'rock':29 's':12C,16C 'set':32,34 'tape':8C 'that':11C 'thats':13C 'where':14C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  4A
                                           '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-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['all', 'rock', 'colombia', '70s']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620383124.9162683  (2021-05-07 12:25:24)
                             'size'  5308290