======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '134'
                                          'artist'  'The Arkay IV'
                                     'text_people'  ''
                                         'release'  'Tape No032 - Instrumental Garage'
                                           'title'  "I'll Keep On Trying"
                                           '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'psychedelic rock', 'summertime fm', 'mod', '60s garage']"
                                     'discogstags'  "['garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '101.0'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tape No032 - Instrumental Garage'
'TBPM' (BPM (beats per minute))                     '101.0'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         "I'll Keep On Trying"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Arkay IV'
'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:discogstags'                                  ['garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'psychedelic rock', 'summertime fm', 'mod', '60s garage']
'TXXX:q-bass'                                       '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+25.15 dB'
'TXXX:replaygain_track_peak'                        '0.026026'
'TXXX:tracknum'                                     '16'

========================== row from database ==========================
                                              'id'  1508464
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT032/16 - The Arkay IV - I_ll Keep On Trying (1967).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  134
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4306770
                                           'mtime'  1620382994
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT032 16 I_ll (1967) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Arkay IV
                                     'tag_release'  Tape No032 - Instrumental Garage
                                       'tag_title'  I'll Keep On Trying
                                             'bpm'  101.0
                                    'search_title'  'i':1 'ill':3 'keep':4 'll':2 'on':5 'trying':6
                                   'search_artist'  'arkay':2 'iv':3 'the':1
                                  'search_release'  'garage':4 'instrumental':3 'no032':2 'tape':1
                                     'search_rest'  '1967':8,9 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt032':5 'i':6 'll':7 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1967':21,22 'arkay':8B 'blogspot':15 'com':16 'garage':13C,25,27 'garagetapes':14,30 'garagetapesblogspotcom':17 'gr':24 'gt032':18 'i':1A,19 'ill':3A 'instrumental':12C 'iv':9B 'keep':4A 'll':2A,20 'no032':11C 'on':5A 'pl':29 'rock':23 'set':26,28 'tape':10C 'the':7B 'trying':6A
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'psychedelic rock', 'summertime fm', 'mod', '60s garage']
                                        'tag_date'  1967
                                     'discogstags'  ['garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620382993.5980346  (2021-05-07 12:23:13)
                             'size'  4306770