======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '167'
                                          'artist'  'New York City'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  "I'm Doin' Fine Now"
                                           'quals'  ("['Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', '7soul', 'funk', '70s']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '46'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '118.221'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '118.221'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         "I'm Doin' Fine Now"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'New York City'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '46'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['soul', '7soul', 'funk', '70s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.83 dB'
'TXXX:replaygain_track_peak'                        '0.602317'

========================== row from database ==========================
                                              'id'  1496875
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1973/046 - New York City - I_m Doin_ Fine Now.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  167
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  3346148
                                           'mtime'  1620385050
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1973 046 I_m Doin_ electronic generic radio unsorted;set pl billboard
                                      'tag_artist'  New York City
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  I'm Doin' Fine Now
                                             'bpm'  118.221
                                    'search_title'  'doin':4,5 'fine':6 'i':1 'im':3 'm':2 'now':7
                                   'search_artist'  'city':3 'new':1 'york':2
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1973':3 'billboard':15 'doin':6 'electronic':7 'generic':8 'i':4 'm':5 'pl':14 'radio':9 'set':11,13 'top100':2 'unsorted':10,12
                                    'search_combo'  '00poprockelectronic':17 '1':16C '1973':19 'billboard':11C,31 'city':10B 'doin':4A,5A,22 'electronic':23 'fine':6A 'generic':24 'i':1A,20 'im':3A 'm':2A,21 'new':8B 'now':7A 'of':15C 'pl':30 'pop':13C 'radio':25 'set':27,29 'singles':14C 'top':12C 'top100':18 'unsorted':26,28 'york':9B
                                    'tag_tracknum'  46
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', '7soul', 'funk', '70s']
                                        'tag_date'  1973
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620385050.0556238  (2021-05-07 12:57:30)
                             'size'  3346148