======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '137'
                                          'artist'  'Dave Pell Singers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Oh Calcutta'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'set-th-sex;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '146.000'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA')
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-sex', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Oh Calcutta'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dave Pell Singers'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.374398'

========================== row from database ==========================
                                              'id'  762268
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Dave Pell Singers - Oh Calcutta (Liberty, 1969; wr. S. Walden; pr. Dave Pell).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  137
                                           'genre'  set-th-sex;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3448216
                                           'mtime'  1620343510
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes sexy (Liberty, 1969; wr. S. Walden; pr. Pell) set th sex;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Dave Pell Singers
                                     'tag_release'  None
                                       'tag_title'  Oh Calcutta
                                             'bpm'  146.0
                                    'search_title'  'calcutta':2 'oh':1
                                   'search_artist'  'dave':1 'pell':2 'singers':3
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 '1969':7,8 'liberty':5,6 'mor':30 'pell':17,18 'pl':25 'pr':15,16 's':11,12 'set':19,22,24,27,29 'sex':21,23 'sexy':4 'shirleyspinoza':26,28 'th':20 'themes':3 'walden':13,14 'wr':9,10
                                    'search_combo'  '0novelty':7 '0playlists':6 '1969':12,13 'calcutta':2A 'dave':3B 'liberty':10,11 'mor':35 'oh':1A 'pell':4B,22,23 'pl':30 'pr':20,21 's':16,17 'set':24,27,29,32,34 'sex':26,28 'sexy':9 'shirleyspinoza':31,33 'singers':5B 'th':25 'themes':8 'walden':18,19 'wr':14,15
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343510.0287626  (2021-05-07 01:25:10)
                             'size'  3448216