======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '111'
                                          'artist'  'Joseph Schillinger'
                                     'text_people'  ''
                                         'release'  'Music from the Ether: Original Works for Theremin'
                                           'title'  'Melody'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-1', "
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                                      'lastfmtags'  "['contemporary classical', 'composer', 'american', 'ukrainian', 'theremin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'mi-theremin'
                                             'bpm'  '127.4'
                                             'key'  '3A'
                                        'acoustid'  'dd6dc982-c5ee-4300-acff-462b005b1884'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '127.4'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'mi-theremin'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'iTunes v7.6.1'
'TIT2' (Title/songname/content description)         'Melody'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Joseph Schillinger'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Mode'
'TRCK' (Track number/Position in set)               '1/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Schillinger, Joseph'
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'TXXX:CATALOGNUMBER'                                'mode 76'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'live'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['contemporary classical', 'composer', 'american', 'ukrainian', 'theremin']
'TXXX:q-bass'                                       '1'
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'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
'TXXX:replaygain_track_peak'                        '0.883748'
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========================== row from database ==========================
                                              'id'  772562
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Music From The Ether_ Original Works For Theremin/01 Melody.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  111
                                           'genre'  mi-theremin
                                        'filesize'  4480518
                                           'mtime'  1620574075
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm From Ether_ For 01 theremin
                                      'tag_artist'  Joseph Schillinger
                                     'tag_release'  Music from the Ether: Original Works for Theremin
                                       'tag_title'  Melody
                                             'bpm'  127.4
                                    'search_title'  'melody':1
                                   'search_artist'  'joseph':1 'schillinger':2
                                  'search_release'  'ether':4,5 'for':8 'from':2 'music':1 'original':6 'the':3 'theremin':9 'works':7
                                     'search_rest'  'ether':2 'for':3 'from':1 'theremin':4
                                    'search_combo'  'ether':7C,8C,14 'for':11C,15 'from':5C,13 'joseph':2B 'melody':1A 'music':4C 'original':9C 'schillinger':3B 'the':6C 'theremin':12C,16 'works':10C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'composer', 'american', 'ukrainian', 'theremin']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574074.8261745  (2021-05-09 17:27:54)
                             'size'  4480518