======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '208'
                                          'artist'  'A Reminiscent Drive'
                                     'text_people'  ''
                                         'release'  'Ambrosia'
                                           'title'  'The Unseen World'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'downtempo', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '14'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '120.0'
                                             'key'  '9A'
                                        'acoustid'  '3fc50638-f8af-4d5e-a57b-3dd4d5016477'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ambrosia'
'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic']
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'The Unseen World'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'A Reminiscent Drive'
'TPE2' (Band/orchestra/accompaniment)               'A Reminiscent Drive'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  "TOY'S FACTORY"
'TRCK' (Track number/Position in set)               '4/14'
'TSO2'                                              'Reminiscent Drive, A'
'TSOP' (Performer sort order)                       'Reminiscent Drive, A'
'TSRC' (ISRC (international standard recording code))  'FRV229900095'
'TXXX:ASIN'                                         'B00004SPLA'
'TXXX:Acoustid Id'                                  '3fc50638-f8af-4d5e-a57b-3dd4d5016477'
'TXXX:BARCODE'                                      '4988061878027'
'TXXX:CATALOGNUMBER'                                'TFCK-87802'
'TXXX:MusicBrainz Album Artist Id'                  '3376bc9f-c766-4a7c-8792-c1c938587e00'
'TXXX:MusicBrainz Album Id'                         '2673a309-5af0-4c11-bd55-e706f0d54a55'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3376bc9f-c766-4a7c-8792-c1c938587e00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'downtempo', 'chillout', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.07 dB'
'TXXX:replaygain_track_peak'                        '0.451633'

========================== row from database ==========================
                                              'id'  1363545
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/A Reminiscent Drive - 2000 - Ambrosia (Play It Again Sam) [256k]/A Reminiscent Drive - Ambrosia - 04 - The Unseen World.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  208
                                           'genre'  electronic
                                        'filesize'  6688569
                                           'mtime'  1636913044
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer 2000 (Play It Again Sam) [256k] 04 electronic
                                      'tag_artist'  A Reminiscent Drive
                                     'tag_release'  Ambrosia
                                       'tag_title'  The Unseen World
                                             'bpm'  120.0
                                    'search_title'  'the':1 'unseen':2 'world':3
                                   'search_artist'  'a':1 'drive':3 'reminiscent':2
                                  'search_release'  'ambrosia':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '2000':3 '256k':10,11 'again':7 'electronic':12 'it':6 'play':4,5 'sam':8,9
                                    'search_combo'  '00calmer':9 '00poprockelectronic':8 '2000':10 '256k':17,18 'a':4B 'again':14 'ambrosia':7C 'drive':6B 'electronic':19 'it':13 'play':11,12 'reminiscent':5B 'sam':15,16 'the':1A 'unseen':2A 'world':3A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'downtempo', 'chillout', 'ambient']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913044.0830228  (2021-11-14 19:04:04)
                             'size'  6688569