======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '1476'
                                          'artist'  'The Azusa Plane'
                                     'text_people'  ''
                                         'release'  'America Is Dreaming Of Univers'
                                           'title'  'Strings 7'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['drone', 'ambient', 'space rock', 'experimental', 'lovedbybeyondwithin']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '143.2'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'America Is Dreaming Of Univers'
'TBPM' (BPM (beats per minute))                     '143.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Strings 7'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Azusa Plane'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['drone', 'ambient', 'space rock', 'experimental', 'lovedbybeyondwithin']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.55 dB'
'TXXX:replaygain_track_peak'                        '0.518899'

========================== row from database ==========================
                                              'id'  986392
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic ambient/The Azusa Plane-Strings 7.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  1476
                                           'genre'  electronic-ambient
                                        'filesize'  23633211
                                           'mtime'  1636910393
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Epitonic ambient electronic ambient
                                      'tag_artist'  The Azusa Plane
                                     'tag_release'  America Is Dreaming Of Univers
                                       'tag_title'  Strings 7
                                             'bpm'  143.2
                                    'search_title'  '7':2 'strings':1
                                   'search_artist'  'azusa':2 'plane':3 'the':1
                                  'search_release'  'america':1 'dreaming':3 'is':2 'of':4 'univers':5
                                     'search_rest'  'ambient':2 'electronic':3 'epitonic':1
                                    'search_combo'  '7':2A 'ambient':12 'america':6C 'azusa':4B 'dreaming':8C 'electronic':13 'epitonic':11 'is':7C 'of':9C 'plane':5B 'strings':1A 'the':3B 'univers':10C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['drone', 'ambient', 'space rock', 'experimental', 'lovedbybeyondwithin']
                                        'tag_date'  1998
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636910393.27406  (2021-11-14 18:19:53)
                             'size'  23633211