======================== unified (from filesystem) ========================
                                         'bitrate'  '233.006'
                                        'duration'  '272'
                                          'artist'  'Penguin Cafe Orchestra'
                                     'text_people'  ''
                                         'release'  'Penguin Cafe Orchestra'
                                           'title'  'Air ` Danser'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']"
                                     'discogstags'  "['pop', 'classical', 'modern classical', 'minimal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '111.701'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Penguin Cafe Orchestra'
'TBPM' (BPM (beats per minute))                     '111.701'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Air ` Danser'
'TKEY' (Initial key)                                '10B'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Penguin Cafe Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Penguin Cafe Orchestra'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/15'
'TXXX:Albumartistsort'                              'Penguin Cafe Orchestra'
'TXXX:Artistsort'                                   'Penguin Cafe Orchestra'
'TXXX:Asin'                                         'B000003S2G'
'TXXX:Catalognumber'                                'EEGCD 11'
'TXXX:Fmps_playcount'                               '1'
'TXXX:Fmps_rating'                                  '0.6'
'TXXX:Fmps_rating_amarok_score'                     '0.25'
'TXXX:Label'                                        'Editions EG'
'TXXX:Media'                                        'CD'
'TXXX:Musicbrainz_albumartistid'                    '4dfadf48-e15b-4fc2-a800-2b68702a72d5'
'TXXX:Musicbrainz_albumid'                          '511ae33b-78c9-30fc-8aa8-209aee543f6b'
'TXXX:Musicbrainz_albumstatus'                      'official'
'TXXX:Musicbrainz_albumtype'                        'album'
'TXXX:Musicbrainz_artistid'                         '4dfadf48-e15b-4fc2-a800-2b68702a72d5'
'TXXX:Musicbrainz_trackid'                          'e21f1b4f-15f3-4b17-a358-6429071d41d5'
'TXXX:Musicip_puid'                                 'a158941f-e48a-e9db-0b96-b97d627cf4f5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:Releasecountry'                               'US'
'TXXX:Script'                                       'Latn'
'TXXX:discogstags'                                  ['pop', 'classical', 'modern classical', 'minimal']
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.783908'

========================== row from database ==========================
                                              'id'  1107601
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Penguin Cafe Orchestra/01 - Air A Danser.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  272
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  7927588
                                           'mtime'  1620533463
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 01 prerock jb jazz soft salon or easy
                                      'tag_artist'  Penguin Cafe Orchestra
                                     'tag_release'  Penguin Cafe Orchestra
                                       'tag_title'  Air ` Danser
                                             'bpm'  111.701
                                    'search_title'  'air':1 'danser':2
                                   'search_artist'  'cafe':2 'orchestra':3 'penguin':1
                                  'search_release'  'cafe':2 'orchestra':3 'penguin':1
                                     'search_rest'  'country':4 'easy':10 'exotica':2 'jazz':1 'jb':6 'oldies':3 'or':9 'prerock':5 'salon':8 'soft':7
                                    'search_combo'  'air':1A 'cafe':4B,7C 'country':12 'danser':2A 'easy':18 'exotica':10 'jazz':9 'jb':14 'oldies':11 'or':17 'orchestra':5B,8C 'penguin':3B,6C 'prerock':13 'salon':16 'soft':15
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'new age', 'classical', 'ambient']
                                        'tag_date'  1989
                                     'discogstags'  ['pop', 'classical', 'modern classical', 'minimal']

============================== file details ==============================
                                           'mtime'  1620533462.714344  (2021-05-09 06:11:02)
                             'size'  7927588