======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '144'
                                          'artist'  'The 2nd Thought'
                                     'text_people'  ''
                                         'release'  'Tape No166 - One Day Love -rare and (or) obscure stuff-'
                                           'title'  "If Only You'd Loved Me"
                                           '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-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['rock & roll', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '126.7'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.gr/'
'TALB' (Album/Movie/Show title)                     'Tape No166 - One Day Love -rare and (or) obscure stuff-'
'TBPM' (BPM (beats per minute))                     '126.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "If Only You'd Loved Me"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'The 2nd Thought'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'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'                                  ['rock & roll', 'pop', 'rock']
'TXXX:q-bass'                                       '1'
'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'                        '+22.45 dB'
'TXXX:replaygain_track_peak'                        '0.032330'
'TXXX:tracknum'                                     '16'

========================== row from database ==========================
                                              'id'  1508477
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT166/16 - The 2nd Thought - If Only You_d Loved Me (196 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  144
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3540583
                                           'mtime'  1620384926
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT166 You_d (196 US) rock gr garage;set pl garagetapes
                                      'tag_artist'  The 2nd Thought
                                     'tag_release'  Tape No166 - One Day Love -rare and (or) obscure stuff-
                                       'tag_title'  If Only You'd Loved Me
                                             'bpm'  126.7
                                    'search_title'  'd':4 'if':1 'loved':6 'me':7 'only':2 'you':3 'youd':5
                                   'search_artist'  '2nd':2 'the':1 'thought':3
                                  'search_release'  'and':8 'day':4 'love':5 'no166':2 'obscure':11 'one':3 'or':9,10 'rare':6,7 'stuff':12,13 'tape':1
                                     'search_rest'  '196':8,9 'blogspot':2 'com':3 'd':7 'garage':14,16 'garagetapes':1,19 'garagetapesblogspotcom':4 'gr':13 'gt166':5 'pl':18 'rock':12 'set':15,17 'us':10,11 'you':6
                                    'search_combo'  '196':31,32 '2nd':9B 'and':18C 'blogspot':25 'com':26 'd':4A,30 'day':14C 'garage':37,39 'garagetapes':24,42 'garagetapesblogspotcom':27 'gr':36 'gt166':28 'if':1A 'love':15C 'loved':6A 'me':7A 'no166':12C 'obscure':21C 'one':13C 'only':2A 'or':19C,20C 'pl':41 'rare':16C,17C 'rock':35 'set':38,40 'stuff':22C,23C 'tape':11C 'the':8B 'thought':10B 'us':33,34 'you':3A,29 'youd':5A
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  1B
                                           '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-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1965
                                     'discogstags'  ['rock & roll', 'pop', 'rock']

============================== file details ==============================
                                           'mtime'  1620384925.551703  (2021-05-07 12:55:25)
                             'size'  3540583