======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '122'
                                          'artist'  'JFK singers'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  'ask not waltz'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '86.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '86.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'ask not waltz'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'JFK singers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Brunswick'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
'TXXX:replaygain_track_peak'                        '0.479832'

========================== row from database ==========================
                                              'id'  649163
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/JFK singers - ask not waltz.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  122
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  985141
                                           'mtime'  1636916336
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs electronic experimental oddness
                                      'tag_artist'  JFK singers
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  ask not waltz
                                             'bpm'  86.7
                                    'search_title'  'ask':1 'not':2 'waltz':3
                                   'search_artist'  'jfk':1 'singers':2
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'electronic':3 'experimental':4 'maniacs':2 'music':1 'oddness':5
                                    'search_combo'  'ask':1A 'electronic':11 'experimental':12 'for':7C 'jfk':4B 'maniacs':8C,10 'music':6C,9 'not':2A 'oddness':13 'singers':5B 'waltz':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916335.6179647  (2021-11-14 19:58:55)
                             'size'  985141