======================== unified (from filesystem) ========================
                                         'bitrate'  '129.832'
                                        'duration'  '17'
                                          'artist'  'Oleg Kostrow'
                                     'text_people'  ''
                                         'release'  'Commercial Album'
                                           'title'  'Professor and Dog'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['russian', 'new weird russia', 'electronic', 'experimental', 'surf']"
                                     'discogstags'  "['jazz', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '38'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness;set-pl-mor'
                                             'bpm'  '145.6'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Commercial Album'
'TBPM' (BPM (beats per minute))                     '145.6'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-oddness', 'set-pl-mor']
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'Lame 3.97'
'TIT2' (Title/songname/content description)         'Professor and Dog'
'TKEY' (Initial key)                                '7A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Oleg Kostrow'
'TRCK' (Track number/Position in set)               '38'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['jazz', 'easy listening']
'TXXX:lastfmtags'                                   ['russian', 'new weird russia', 'electronic', 'experimental', 'surf']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.312162'

========================== row from database ==========================
                                              'id'  1377949
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Oleg Kostrow - Oleg_Kostrow-Commercial_Album-2009-BCC/38-oleg_kostrow-professor_and_dog.mp3
                                         'working'  None
                                         'bitrate'  130
                                    'duration_sec'  17
                                           'genre'  electronic-experimental-oddness;set-pl-mor
                                        'filesize'  281771
                                           'mtime'  1636915816
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Oleg_Kostrow Commercial_Album 2009 BCC 38 oleg_kostrow professor_and_dog electronic experimental oddness;set pl mor
                                      'tag_artist'  Oleg Kostrow
                                     'tag_release'  Commercial Album
                                       'tag_title'  Professor and Dog
                                             'bpm'  145.6
                                    'search_title'  'and':2 'dog':3 'professor':1
                                   'search_artist'  'kostrow':2 'oleg':1
                                  'search_release'  'album':2 'commercial':1
                                     'search_rest'  '2009':5 '38':7 'album':4 'and':9 'bcc':6 'commercial':3 'dog':10 'electronic':11 'experimental':12 'kostrow':2 'mor':18 'oddness':13,15 'oleg':1 'pl':17 'professor':8 'set':14,16
                                    'search_combo'  '2009':12 '38':14 'album':7C,11 'and':2A,16 'bcc':13 'commercial':6C,10 'dog':3A,17 'electronic':18 'experimental':19 'kostrow':5B,9 'mor':25 'oddness':20,22 'oleg':4B,8 'pl':24 'professor':1A,15 'set':21,23
                                    'tag_tracknum'  38
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'new weird russia', 'electronic', 'experimental', 'surf']
                                        'tag_date'  2009
                                     'discogstags'  ['jazz', 'easy listening']

============================== file details ==============================
                                           'mtime'  1636915816.0625367  (2021-11-14 19:50:16)
                             'size'  281771