======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '202'
                                          'artist'  'Eddy Senay'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "Ain't No Sunshine (reg. '72)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'jazz', 'funk', '7soul', 'all']"
                                     'discogstags'  "['funk / soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '84.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '84.7'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "Ain't No Sunshine (reg. '72)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eddy Senay'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'funk']
'TXXX:lastfmtags'                                   ['soul', 'jazz', 'funk', '7soul', 'all']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.329693'

========================== row from database ==========================
                                              'id'  1528534
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Eddy Senay - Ain_t No Sunshine (reg. _72).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  202
                                           'genre'  funk or soul
                                        'filesize'  4864968
                                           'mtime'  1628357819
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY 70_s Ain_t _72) funk or soul
                                      'tag_artist'  Eddy Senay
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  Ain't No Sunshine (reg. '72)
                                             'bpm'  84.7
                                    'search_title'  '72':8,9 'ain':1 'aint':3 'no':4 'reg':6,7 'sunshine':5 't':2
                                   'search_artist'  'eddy':1 'senay':2
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '70':5 '72':9,10 'ain':7 'easy':4 'funk':2 'or':11 's':6 'soul':3 'swing':1 't':8
                                    'search_combo'  '70':19 '70s':14C '72':8A,9A,23,24 'ain':1A,21 'aint':3A 'easy':12C,18 'eddy':10B 'funk':16 'instr':13C 'no':4A 'or':25 'reg':6A,7A 's':20 'senay':11B 'soul':17 'sunshine':5A 'swing':15 't':2A,22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'jazz', 'funk', '7soul', 'all']
                                        'tag_date'  1975
                                     'discogstags'  ['funk / soul', 'funk']

============================== file details ==============================
                                           'mtime'  1628357818.7228642  (2021-08-07 19:36:58)
                             'size'  4864968