======================== unified (from filesystem) ========================
                                         'bitrate'  '160.013'
                                        'duration'  '260'
                                          'artist'  '8bit Rockers'
                                     'text_people'  ''
                                         'release'  'Arcade Hits'
                                           'title'  'Monsters Cave'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['chiptune', 'electro', '8 bit', 'elektronic beats', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '15'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '145.2'
                                             'key'  '9A'
                                        'acoustid'  '71cc9472-5b0f-4e7b-b754-f556e6147584'
rest: ''

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

'COMM:Songs-DB_Custom2:XXX'                         '1032090'
'COMM:Songs-DB_Custom3:XXX'                         '88'
'COMM:Songs-DB_Custom4:XXX'                         'Finland'
'COMM:Songs-DB_Custom5:XXX'                         'File, MP3'
'TALB' (Album/Movie/Show title)                     'Arcade Hits'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-09-19'
'TIT2' (Title/songname/content description)         'Monsters Cave'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               '8bit Rockers'
'TPE2' (Band/orchestra/accompaniment)               '8bit Rockers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'MILK'
'TRCK' (Track number/Position in set)               '5/15'
'TSO2'                                              '8bit Rockers'
'TSOP' (Performer sort order)                       '8bit Rockers'
'TXXX:Acoustid Id'                                  '71cc9472-5b0f-4e7b-b754-f556e6147584'
'TXXX:CATALOGNUMBER'                                '88'
'TXXX:MusicBrainz Album Artist Id'                  'c98fe1b9-3490-417e-8c8b-df6d44daa88e'
'TXXX:MusicBrainz Album Id'                         'd5d25b2d-8d8b-44f2-b6fd-9792386a6b36'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c98fe1b9-3490-417e-8c8b-df6d44daa88e'
'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:lastfmtags'                                   ['chiptune', 'electro', '8 bit', 'elektronic beats', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '4'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
'TXXX:replaygain_track_peak'                        '0.706299'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'177c18f9-ba7d-4e89-873b-e4a0143c15bb')

========================== row from database ==========================
                                              'id'  1379726
                                            'path'  /data/Music/Bulk/00poprockelectronic/00beepy/8Bit Rockers_Arcade Hits_2000/05 - Monsters Cave.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  260
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  5211874
                                           'mtime'  1621627385
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00beepy 8Bit Rockers_Arcade Hits_2000 05 electronic we beeps or chip or pico
                                      'tag_artist'  8bit Rockers
                                     'tag_release'  Arcade Hits
                                       'tag_title'  Monsters Cave
                                             'bpm'  145.2
                                    'search_title'  'cave':2 'monsters':1
                                   'search_artist'  '8bit':1 'rockers':2
                                  'search_release'  'arcade':1 'hits':2
                                     'search_rest'  '00beepy':2 '00poprockelectronic':1 '2000':7 '8bit':3 'arcade':5 'beeps':10 'chip':12 'electronic':8 'hits':6 'or':11 'pico':13 'rockers':4 'we':9
                                    'search_combo'  '00beepy':8 '00poprockelectronic':7 '2000':13 '8bit':3B,9 'arcade':5C,11 'beeps':16 'cave':2A 'chip':18 'electronic':14 'hits':6C,12 'monsters':1A 'or':17 'pico':19 'rockers':4B,10 'we':15
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['chiptune', 'electro', '8 bit', 'elektronic beats', 'electronic']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627384.8942385  (2021-05-21 22:03:04)
                             'size'  5211874