======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '222'
                                          'artist'  'Free Movement'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1971'
                                           'title'  "I've Found Someone Of My Own"
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['not streamable', 'top 40', '1971', 'old school soul', 'philly soul']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '92.223'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1971'
'TBPM' (BPM (beats per minute))                     '92.223'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "I've Found Someone Of My Own"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Free Movement'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['not streamable', 'top 40', '1971', 'old school soul', 'philly soul']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.664855'

========================== row from database ==========================
                                              'id'  1520778
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1971/026 - Free Movement - I_ve Found Someone Of My Own.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  222
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  4451436
                                           'mtime'  1620384973
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 026 I_ve electronic generic or radio unsorted;set pl billboard
                                      'tag_artist'  Free Movement
                                     'tag_release'  Billboard Top Pop Singles of 1971
                                       'tag_title'  I've Found Someone Of My Own
                                             'bpm'  92.223
                                    'search_title'  'found':4 'i':1 'ive':3 'my':7 'of':6 'own':8 'someone':5 've':2
                                   'search_artist'  'free':1 'movement':2
                                  'search_release'  '1971':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':14 'electronic':5 'generic':6 'i':3 'or':7 'pl':13 'radio':8 'set':10,12 'top100':2 'unsorted':9,11 've':4
                                    'search_combo'  '00poprockelectronic':17 '1971':16C 'billboard':11C,30 'electronic':21 'found':4A 'free':9B 'generic':22 'i':1A,19 'ive':3A 'movement':10B 'my':7A 'of':6A,15C 'or':23 'own':8A 'pl':29 'pop':13C 'radio':24 'set':26,28 'singles':14C 'someone':5A 'top':12C 'top100':18 'unsorted':25,27 've':2A,20
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['not streamable', 'top 40', '1971', 'old school soul', 'philly soul']
                                        'tag_date'  1971
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620384973.1483057  (2021-05-07 12:56:13)
                             'size'  4451436