======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '190'
                                          'artist'  'Charlie and his Orchestra'
                                     'text_people'  'Jimmy Heath'
                                         'release'  'Music for Maniacs'
                                           'title'  'Nice People'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-3', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'third reich', 'jazz', 'propaganda swing', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '92.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '92.0'
'TCOM' (Composer)                                   'Jimmy Heath'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Nice People'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlie and his Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['german', 'third reich', 'jazz', 'propaganda swing', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.486191'

========================== row from database ==========================
                                              'id'  1476554
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Charlie_and_his_Orchestra_-_01_-_Nice_People.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  190
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  4573056
                                           'mtime'  1636916289
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs Charlie_and_his_Orchestra_ _01_ _Nice_People electronic experimental oddness
                                      'tag_artist'  Charlie and his Orchestra
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  Nice People
                                             'bpm'  92.0
                                    'search_title'  'nice':1 'people':2
                                   'search_artist'  'and':2 'charlie':1 'his':3 'orchestra':4
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  '01':7 'and':4 'charlie':3 'electronic':10 'experimental':11 'his':5 'maniacs':2 'music':1 'nice':8 'oddness':12 'orchestra':6 'people':9
                                    'search_combo'  '01':16 'and':4B,13 'charlie':3B,12 'electronic':19 'experimental':20 'for':8C 'his':5B,14 'maniacs':9C,11 'music':7C,10 'nice':1A,17 'oddness':21 'orchestra':6B,15 'people':2A,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'third reich', 'jazz', 'propaganda swing', 'swing']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916289.3529127  (2021-11-14 19:58:09)
                             'size'  4573056