======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '226'
                                          'artist'  'Potomac Boys Club'
                                     'text_people'  ''
                                         'release'  'The Potomac Boys Club Demos'
                                           'title'  'Against a Mad World'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rap', 'hip-hop', 'mashup', 'electro', 'neo-psychedelia']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '121.191'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000004AB 00000623 00003D82 00005A03 00019B87 00019B87 0000870A 00008A73 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000967 0000000000982E89 00000000 0052C493 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'The Potomac Boys Club Demos'
'TBPM' (BPM (beats per minute))                     '121.191'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TENC' (Encoded by)                                 'iTunes 9.0.1'
'TIT2' (Title/songname/content description)         'Against a Mad World'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Potomac Boys Club'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rap', 'hip-hop', 'mashup', 'electro', 'neo-psychedelia']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+10.01 dB'
'TXXX:replaygain_track_peak'                        '0.164885'

========================== row from database ==========================
                                              'id'  1326841
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/brentonduvall_againstmadworld.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  226
                                           'genre'  electronic-generic or radio
                                        'filesize'  5431407
                                           'mtime'  1630249228
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] brentonduvall_againstmadworld electronic generic radio
                                      'tag_artist'  Potomac Boys Club
                                     'tag_release'  The Potomac Boys Club Demos
                                       'tag_title'  Against a Mad World
                                             'bpm'  121.191
                                    'search_title'  'a':2 'against':1 'mad':3 'world':4
                                   'search_artist'  'boys':2 'club':3 'potomac':1
                                  'search_release'  'boys':3 'club':4 'demos':5 'potomac':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'againstmadworld':8 'brentonduvall':7 'electronic':9 'files':5,6 'generic':10 'loose':3,4 'radio':11 'unsorted':2
                                    'search_combo'  '00poprockelectronic':13 'a':2A 'against':1A 'againstmadworld':20 'boys':6B,10C 'brentonduvall':19 'club':7B,11C 'demos':12C 'electronic':21 'files':17,18 'generic':22 'loose':15,16 'mad':3A 'potomac':5B,9C 'radio':23 'the':8C 'unsorted':14 'world':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rap', 'hip-hop', 'mashup', 'electro', 'neo-psychedelia']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630249228.1577022  (2021-08-29 17:00:28)
                             'size'  5431407