======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '242'
                                          'artist'  'Huey Lewis and The News'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  'Hip to Be Square'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'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'  "['80s', 'rock', 'classic rock', 'pop', 'pop-rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '49'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '141.118'
                                             'key'  '12B'
                                        '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))                     '141.118'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Hip to Be Square'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Huey Lewis and The News'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '49'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'classic rock', 'pop', 'pop-rock']
'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'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.787430'

========================== row from database ==========================
                                              'id'  1343360
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1987/049 - Huey Lewis & the News - Hip to Be Square.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  242
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  4848585
                                           'mtime'  1620567840
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1987 049 & the electronic generic or radio unsorted
                                      'tag_artist'  Huey Lewis and The News
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Hip to Be Square
                                             'bpm'  141.118
                                    'search_title'  'be':3 'hip':1 'square':4 'to':2
                                   'search_artist'  'and':3 'huey':1 'lewis':2 'news':5 'the':4
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1987':3 'electronic':5 'generic':6 'or':7 'radio':8 'the':4 'top100':2 'unsorted':9
                                    'search_combo'  '00poprockelectronic':16 '1':15C '1987':18 'and':7B 'be':3A 'billboard':10C 'electronic':20 'generic':21 'hip':1A 'huey':5B 'lewis':6B 'news':9B 'of':14C 'or':22 'pop':12C 'radio':23 'singles':13C 'square':4A 'the':8B,19 'to':2A 'top':11C 'top100':17 'unsorted':24
                                    'tag_tracknum'  49
                                      'num_images'  0
                                             'key'  12B
                                           '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-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rock', 'classic rock', 'pop', 'pop-rock']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567840.4890535  (2021-05-09 15:44:00)
                             'size'  4848585