======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '230'
                                          'artist'  'Michael Bolton '
                                     'text_people'  ''
                                         'release'  "100 Hits Of The 90'S"
                                           'title'  'When a Man Loves a Woman  '
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'soft rock', 'soul', 'male vocalists', 'michael bolton', 'romantic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '83'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '109.764'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "100 Hits Of The 90'S"
'TBPM' (BPM (beats per minute))                     '109.764'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'When a Man Loves a Woman  '
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Michael Bolton '
'TRCK' (Track number/Position in set)               '83'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'soft rock', 'soul', 'male vocalists', 'michael bolton', 'romantic']
'TXXX:q-bass'                                       '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.71 dB'
'TXXX:replaygain_track_peak'                        '0.509813'

========================== row from database ==========================
                                              'id'  1299091
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/83 When a Man Loves a Woman.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  230
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  9223393
                                           'mtime'  1620384865
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 83 electronic generic or radio unsorted;set pl billboard
                                      'tag_artist'  Michael Bolton 
                                     'tag_release'  100 Hits Of The 90'S
                                       'tag_title'  When a Man Loves a Woman  
                                             'bpm'  109.764
                                    'search_title'  'a':2 'loves':4 'man':3 'when':1 'woman':5
                                   'search_artist'  'bolton':2 'michael':1
                                  'search_release'  '100':1 '90':5 '90s':7 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '83':3 '90s':2 'billboard':13 'electronic':4 'generic':5 'or':6 'pl':12 'radio':7 'set':9,11 'unsorted':8,10
                                    'search_combo'  '00poprockelectronic':15 '100':8C '83':17 '90':12C '90s':14C,16 'a':2A 'billboard':27 'bolton':7B 'electronic':18 'generic':19 'hits':9C 'loves':4A 'man':3A 'michael':6B 'of':10C 'or':20 'pl':26 'radio':21 's':13C 'set':23,25 'the':11C 'unsorted':22,24 'when':1A 'woman':5A
                                    'tag_tracknum'  83
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'soft rock', 'soul', 'male vocalists', 'michael bolton', 'romantic']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384865.1995757  (2021-05-07 12:54:25)
                             'size'  9223393