======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '290'
                                          'artist'  'Sly & the Family Stone'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1970'
                                           'title'  'Thank You (Falettinme Be Mice'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['60s', 'rhythm and blues', 'soul', 'funk', 'rock']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '104.985'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1970'
'TBPM' (BPM (beats per minute))                     '104.985'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Thank You (Falettinme Be Mice'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sly & the Family Stone'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['60s', 'rhythm and blues', 'soul', 'funk', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                        '+2.28 dB'
'TXXX:replaygain_track_peak'                        '0.669128'

========================== row from database ==========================
                                              'id'  1289533
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1970/019 - Sly & the Family Stone - Thank You.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  290
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  5803727
                                           'mtime'  1628353535
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 019 electronic generic or radio unsorted
                                      'tag_artist'  Sly & the Family Stone
                                     'tag_release'  Billboard Top Pop Singles of 1970
                                       'tag_title'  Thank You (Falettinme Be Mice
                                             'bpm'  104.985
                                    'search_title'  'be':5 'falettinme':3,4 'mice':6 'thank':1 'you':2
                                   'search_artist'  'family':3 'sly':1 'stone':4 'the':2
                                  'search_release'  '1970':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'generic':4 'or':5 'radio':6 'top100':2 'unsorted':7
                                    'search_combo'  '00poprockelectronic':17 '1970':16C 'be':5A 'billboard':11C 'electronic':19 'falettinme':3A,4A 'family':9B 'generic':20 'mice':6A 'of':15C 'or':21 'pop':13C 'radio':22 'singles':14C 'sly':7B 'stone':10B 'thank':1A 'the':8B 'top':12C 'top100':18 'unsorted':23 'you':2A
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-2', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'rhythm and blues', 'soul', 'funk', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1628353535.2051766  (2021-08-07 18:25:35)
                             'size'  5803727