======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '165'
                                          'artist'  'The Blizzards'
                                     'text_people'  ''
                                         'release'  'Tape No184 - Free Your Mind'
                                           'title'  "I Know You're Cryin'"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-LOCALNESS-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-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'irish', '60s', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '124.5'
                                             'key'  '9A'
                                        '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 No184 - Free Your Mind'
'TBPM' (BPM (beats per minute))                     '124.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         "I Know You're Cryin'"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Blizzards'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'UY'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['german', 'irish', '60s', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+24.40 dB'
'TXXX:replaygain_track_peak'                        '0.024697'
'TXXX:tracknum'                                     '07'

========================== row from database ==========================
                                              'id'  1500461
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT184/07 - The Blizzards - I Know You_re Cryin_ - (1970 UY) (Prodisa).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  165
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4028386
                                           'mtime'  1620385069
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT184 07 You_re Cryin_ (1970 UY) (Prodisa) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Blizzards
                                     'tag_release'  Tape No184 - Free Your Mind
                                       'tag_title'  I Know You're Cryin'
                                             'bpm'  124.5
                                    'search_title'  'cryin':6,7 'i':1 'know':2 're':4 'you':3 'youre':5
                                   'search_artist'  'blizzards':2 'the':1
                                  'search_release'  'free':3 'mind':5 'no184':2 'tape':1 'your':4
                                     'search_rest'  '1970':9,10 'blogspot':2 'com':3 'cryin':8 'garage':17,19 'garagetapes':1,22 'garagetapesblogspotcom':4 'gr':16 'gt184':5 'pl':21 'prodisa':13,14 're':7 'rock':15 'set':18,20 'uy':11,12 'you':6
                                    'search_combo'  '1970':23,24 'blizzards':9B 'blogspot':16 'com':17 'cryin':6A,7A,22 'free':12C 'garage':31,33 'garagetapes':15,36 'garagetapesblogspotcom':18 'gr':30 'gt184':19 'i':1A 'know':2A 'mind':14C 'no184':11C 'pl':35 'prodisa':27,28 're':4A,21 'rock':29 'set':32,34 'tape':10C 'the':8B 'uy':25,26 'you':3A,20 'your':13C 'youre':5A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'irish', '60s', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620385069.3428721  (2021-05-07 12:57:49)
                             'size'  4028386