======================== unified (from filesystem) ========================
                                         'bitrate'  '219.789'
                                        'duration'  '364'
                                          'artist'  "N'to"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Time'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-PLAY-3', 'q-bass-4', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-1', 'Q-HAP-2', 'Q-SYN-3', 'Q-UNU-2', "
 "'Q-BUSY-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-MIXBEAT-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2017'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '125.1'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2017'
'TIT2' (Title/songname/content description)         'Time'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               "N'to"
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-10.57 dB'
'TXXX:replaygain_track_peak'                        '1.081229'

========================== row from database ==========================
                                              'id'  1535167
                                            'path'  /data/Music/Bulk/00poprockelectronic/N'to/N'to - Time.mp3
                                         'working'  None
                                         'bitrate'  219
                                    'duration_sec'  364
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  10004915
                                           'mtime'  1636133764
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electronic th techno minimal or deephouse
                                      'tag_artist'  N'to
                                     'tag_release'  None
                                       'tag_title'  Time
                                             'bpm'  125.1
                                    'search_title'  'time':1
                                   'search_artist'  'n':1 'nto':3 'to':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'deephouse':7 'electronic':2 'minimal':5 'or':6 'techno':4 'th':3
                                    'search_combo'  '00poprockelectronic':5 'deephouse':11 'electronic':6 'minimal':9 'n':2B 'nto':4B 'or':10 'techno':8 'th':7 'time':1A 'to':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-3', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  2017
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636133763.933829  (2021-11-05 18:36:03)
                             'size'  10004915