======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'Sheryl Crow'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Everyday Is A Winding Road (1997)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or '
 'radio-unsorted;ifs-songwriter-pop;ifs-songwriter-rock;set-pl-billboard')
                                             'bpm'  '112.9'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '112.9'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'ifs-songwriter-pop',
 'ifs-songwriter-rock',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Everyday Is A Winding Road (1997)'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sheryl Crow'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+3.41 dB'
'TXXX:replaygain_track_peak'                        '0.959501'

========================== row from database ==========================
                                              'id'  1303649
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/141 - Sheryl Crow - Everyday Is A Winding Road (1997).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  electronic-generic or radio-unsorted;ifs-songwriter-pop;ifs-songwriter-rock;set-pl-billboard
                                        'filesize'  4106209
                                           'mtime'  1623444708
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 141 electronic generic or radio unsorted;ifs songwriter pop;ifs songwriter rock;set pl billboard
                                      'tag_artist'  Sheryl Crow
                                     'tag_release'  None
                                       'tag_title'  Everyday Is A Winding Road (1997)
                                             'bpm'  112.9
                                    'search_title'  '1997':6,7 'a':3 'everyday':1 'is':2 'road':5 'winding':4
                                   'search_artist'  'crow':2 'sheryl':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '141':3 '90s':2 'billboard':22 'electronic':4 'generic':5 'ifs':9,11,14,16 'or':6 'pl':21 'pop':13,15 'radio':7 'rock':17,19 'set':18,20 'songwriter':12 'unsorted':8,10
                                    'search_combo'  '00poprockelectronic':10 '141':12 '1997':6A,7A '90s':11 'a':3A 'billboard':31 'crow':9B 'electronic':13 'everyday':1A 'generic':14 'ifs':18,20,23,25 'is':2A 'or':15 'pl':30 'pop':22,24 'radio':16 'road':5A 'rock':26,28 'set':27,29 'sheryl':8B 'songwriter':21 'unsorted':17,19 'winding':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3B
                                           '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-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623444708.109825  (2021-06-11 22:51:48)
                             'size'  4106209