======================== unified (from filesystem) ========================
                                         'bitrate'  '159.984'
                                        'duration'  '268'
                                          'artist'  'Orchestral Manoeuvres in the Dark'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 - 1986'
                                           'title'  'If You Leave'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'synth pop', 'electronic', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '53'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '120.327'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'COMM:Track:Comments:eng'                           'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top 100 - 1986'
'TBPM' (BPM (beats per minute))                     '120.327'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'If You Leave'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Orchestral Manoeuvres in the Dark'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '53'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'synth pop', 'electronic', 'synthpop']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.803689'

========================== row from database ==========================
                                              'id'  1345564
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/053 - OMD - If You Leave.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  268
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  5379615
                                           'mtime'  1620567721
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 053 OMD electronic we new wave or post punk
                                      'tag_artist'  Orchestral Manoeuvres in the Dark
                                     'tag_release'  Billboard Top 100 - 1986
                                       'tag_title'  If You Leave
                                             'bpm'  120.327
                                    'search_title'  'if':1 'leave':3 'you':2
                                   'search_artist'  'dark':5 'in':3 'manoeuvres':2 'orchestral':1 'the':4
                                  'search_release'  '100':3 '1986':4 'billboard':1 'top':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'new':5 'omd':2 'or':7 'post':8 'punk':9 'wave':6 'we':4
                                    'search_combo'  '00poprockelectronic':13 '100':11C '1986':12C 'billboard':9C 'dark':8B 'electronic':15 'if':1A 'in':6B 'leave':3A 'manoeuvres':5B 'new':17 'omd':14 'or':19 'orchestral':4B 'post':20 'punk':21 'the':7B 'top':10C 'wave':18 'we':16 'you':2A
                                    'tag_tracknum'  53
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'synth pop', 'electronic', 'synthpop']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620567720.5114882  (2021-05-09 15:42:00)
                             'size'  5379615