======================== unified (from filesystem) ========================
                                         'bitrate'  '184.513'
                                        'duration'  '567'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  "Chunga's Revenge"
                                           'title'  'The Nancy & Mary Music'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                                     'discogstags'  "['rock', 'blues rock', 'alternative rock', 'jazz-rock', 'avantgarde']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '10'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '141.611'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Chunga's Revenge"
'TBPM' (BPM (beats per minute))                     '141.611'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'The Nancy & Mary Music'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TPE2' (Band/orchestra/accompaniment)               'Frank Zappa'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rykodisc'
'TRCK' (Track number/Position in set)               '4/10'
'TSO2'                                              'Zappa, Frank'
'TSOP' (Performer sort order)                       'Zappa, Frank'
'TXXX:ASIN'                                         'B0000009S8'
'TXXX:BARCODE'                                      '014431051128'
'TXXX:CATALOGNUMBER'                                'RCD 1443-10511-2'
'TXXX:MusicBrainz Album Artist Id'                  'e20747e7-55a4-452e-8766-7b985585082d'
'TXXX:MusicBrainz Album Id'                         '9cd61f45-58c3-3fcc-a518-9339baa3b0da'
'TXXX:MusicBrainz Album Release Country'            'AR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e20747e7-55a4-452e-8766-7b985585082d'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'blues rock', 'alternative rock', 'jazz-rock', 'avantgarde']
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.663668'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'48a97192-73bd-465a-814b-947644ae4ee4')

========================== row from database ==========================
                                              'id'  1526181
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Frank Zappa/1970 - Chunga_s Revenge/04 - The Nancy & Mary Music.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  567
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  13103268
                                           'mtime'  1636400801
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1970 Chunga_s 04 ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Chunga's Revenge
                                       'tag_title'  The Nancy & Mary Music
                                             'bpm'  141.611
                                    'search_title'  'mary':3 'music':4 'nancy':2 'the':1
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'chunga':1 'chungas':3 'revenge':4 's':2
                                     'search_rest'  '00singer':1 '1970':4 'chunga':5 'eos':3 'experimental':8 'ifs':7 's':6 'songwriter':2
                                    'search_combo'  '00singer':11 '1970':14 'chunga':7C,15 'chungas':9C 'eos':13 'experimental':18 'frank':5B 'ifs':17 'mary':3A 'music':4A 'nancy':2A 'revenge':10C 's':8C,16 'songwriter':12 'the':1A 'zappa':6B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  ['rock', 'blues rock', 'alternative rock', 'jazz-rock', 'avantgarde']

============================== file details ==============================
                                           'mtime'  1636400801.4130926  (2021-11-08 20:46:41)
                             'size'  13103268